n. [dɪˈvaɪs] 设备，装置 a machine or tool created for a specific purpose

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v. [dɪˈveləp] 发展，成长 to grow, advance, or change over time

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v. [ɪnˈvent] 动词，发明，创造 to create or discover something new that has never existed before

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n. [ˈhelɪkɑptər] 直升机 a type of aircraft with rotors that enable it to lift off vertically and fly in any direction

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v./n. [dɪˈzaɪn] 设计，规划 the process of planning and creating something, or the thing that has been created

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n. /ˈɛndʒɪn/ 发动机 a machine with moving parts that converts power into motion

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n. /ˈdrɔːɪŋ/ 图画，素描 a picture or diagram made with a pen, pencil, or other tool

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n. /ˌɛndʒɪˈnɪər/ 工程师 a person who designs, builds, or maintains machines, engines, or structures

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v. /floʊt/ 漂浮，浮动 to stay on the surface of a liquid or gas without sinking

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v. /sɪŋk/ 沉没，下沉 to go down below the surface of a liquid or soft substance

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n. /ɪmˈprɛʃən/ 印象，感觉 a feeling, idea, or opinion that is formed about someone or something

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n. /beɪs/ 基地，基础 the bottom or supporting part of something

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n. /hɪˈstɔːriən/ 历史学家 a person who studies and writes about history

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v. /dɪˈskraɪb/ 描述，叙述 to give an account in words of

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/ɪˈvɒlv/ v. 进化，发展；逐渐形成 to develop gradually or to cause something to develop gradually

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/kəˈnekʃn/ n. 连接，关系 the state of being related to someone or something else

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/reɪ/ n. 光线，射线 a narrow beam of light, heat, or other energy

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/ɪnˈdʒiːniəs/ adj. 聪明的，有独创性的 very clever or original

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/stretʃ/ v./n. 伸展，延伸；伸展，延伸 to extend or to cause something to extend over a distance

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/pəˈspektɪv/ n. 视角，观点；透视图 a particular way of viewing things that depends on one's experience and personality

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[ˌsɪvələˈzeɪʃn] n. 文明 a state of human society that is very developed and organized

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/ˈsɛləbreɪt/ v. 庆祝 to observe or commemorate a significant event or occasion with festivities or other activities;

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/ˈbrɪljənt/ adj. 杰出的 exceptionally clever, talented, or skilled; shining brightly and with great intensity;

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/ˌmæθəməˈtɪʃən/ n. 数学家 a person who is an expert in mathematics, either by profession or by advanced study and research;

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/ˌkælkjʊˈleɪʃən/ n. 计算 the process of using mathematical operations to determine a numerical result; an estimation or assessment of something;

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/maɪˈnɔrəti/ n. 少数民族 a group of people who are distinct from the majority population, often due to ethnic, cultural, or religious differences.

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to become impossible to see

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weak and easily hurt physically or emotionally

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(of a type of plant, animal, etc. no longer in existence

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a particular situation or a situation of a particular type

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to continue to live or exist despite a dangerous event or time

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the measurement in degrees of how hot or cold a thing or place is

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the place where a particular type of animal or plant is normally found

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to put sb/sth in a situation in which they could be harmed or damaged

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serious/dangerous; A critical time, factor, or situation is extremely important.

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a change that sb/sth causes in sb/sth else; a result

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monkeys, apes, and humans

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to be different

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a member of your family

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a strong feeling of surprise as a result of sth happening, especially sth unpleasant; the event that causes this feeling

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most recent

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to find out how heavy something is

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having the power to attract

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connected with gradual development and change

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an effect or result

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luckily

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to put forward an idea or a plan for other people to think about

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to make a document available to the general public

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an important topic or problem for debate or discussion

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to care for a child or young animal until it is able to take care of itself.

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adj. [ʌnˈsɜːtn] 无把握;犹豫;拿不准;多变的;难预料的;不确定的;未决定的;信心不足的 feeling doubt about sth; not sure

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n./vt.[rɪsk]危险;风险;危险人物;会带来风险的事物;冒险做 a chance of getting hurt or losing something; to put in danger.

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adj.[bɔːrd]无聊的;(对某人 / 事物)厌倦的;烦闷的 feeling tired or restless because of having to do something that is not interesting.

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n.[fɔːˈmeɪʃn] [fɔːrˈmeɪʃn] 组成;形成;组成物;形成物;编队;队形 the action of forming sth; the process of being formed

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n.[ækˈtɪvəti] 活动；热闹状况；活跃 a situation in which sth is happening or a lot of things are being done

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n.[ˈbɪznəs] 商业机构；企业；公司；商店；工厂 a commercial organization such as a company, shop/store or factory

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adj.[ˈpleznt] 令人愉快的;宜人的;可喜的;吸引人的;友好的;和善的;文雅的 having a friendly manner; nice; pleasing.

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n. [ˌsɪtʃuˈeɪʃn] [ˌsɪtʃuˈeɪʃn] 情况;状况;形势;局面all the circumstances and things that are happening at a particular time and in a particular place

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adj.[əˈfreɪd] 害怕，畏惧（可能受伤害、受苦） feeling fear; frightened because you think that you might be hurt or suffer

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v. [səkˈsiːd] 达到目的；实现目标；办到；做成 to achieve sth that you have been trying to do or get; to have the result or effect that was intended

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v. [əˈtʃiːv] 实现;完成;(凭长期努力)达到(某目标、地位、标准);成功 to succeed in reaching a particular goal, status or standard, especially by making an effort for a long time

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n. [ˌekspəˈdɪʃn] 远征；探险；考察 an organized journey with a particular purpose, especially to find out about a place that is not well known

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adj. [əˈɡresɪv] 好斗的；挑衅的；侵略的；富于攻击性的 angry, and behaving in a threatening way; ready to attack

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v. [ˈreskjuː] 营救；援救；抢救 to save sb/sth from a dangerous or harmful situation

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v. [rɪp] （突然或猛烈地）撕破，裂开 to tear sth or to become torn, often suddenly or violently

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adj.[ɪˈnɔːrməs] 巨大的；庞大的；极大的 extremely large

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v. [weɪ] 有...重；重 to have a particular weight

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v./n. [əˈtæk] 袭击；攻击 奋力处理；全力对付 an act of using violence to try to hurt or kill sb; to deal with sth with a lot of energy and determination

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prep. [wɪˈðaʊt] 没有；缺乏 not having, experiencing or showing sth

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n. [ˈboʊldərɪŋ] 攀岩（运动） the sport or activity of climbing on large rocks

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n. [ˈdɪfɪkəlti] 困难 the condition of being hard to do.

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n./v. [reɪt] 比率；率 ，评估;评价;划分等级; to put in a certain rank or order a measurement of the speed at which sth happens

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v. [kənˈtɪnjuː] 持续；继续存在；不断发生 to keep existing or happening without stopping

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v. [ɪkˈspekt] 等待；期待；盼望 to be waiting for sb/sth to arrive, as this has been arranged

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n. [ˈtrʌbl] 问题；忧虑；困难；苦恼 a problem, worry, difficulty, etc. or a situation causing this

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adv.[ɪˈventʃuəli] 最后；终于 at the end of a period of time or a series of events

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v. [ˈfɑːloʊ] 跟随；跟着 to come or go after or behind sb/sth

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n. [əˈwernəs] 知道；认识；意识；兴趣 knowing sth; knowing that sth exists and is important; being interested in sth

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n. [ɪˈkwɪpmənt] 设备；器材 the things that are needed for a particular purpose or activity

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