When you __________(lãng phí) your resources, you waste or use them in an excessive or careless manner.

Sue always manages to upset somebody when we go out - she's a real .....(điều phiền toái)

• mechanisms

• end goal

• outbreak

• liability

__________ (sự thông hơi) is the process of exchanging or replacing stale or stagnant air with fresh air.

The law of ..... (hiệu suất giảm dần) is related to the concept of diminishing marginal utility.

• diminishing returns

• hierarchy

• circulation

• commission

People who are __________(đòi hỏi) for better working conditions are demanding them loudly and persistently.

The company's decision to cut corners and compromise on quality had __________(có hại) consequences for its reputation.

His first attempt to cool down the hospital .....(khoa) involved suspending blocks of ice high in the air and directing a current of air from a chimney over them.

If he wants to avoid problems or conflicts, it's best to __________(tránh xa) any controversial topics.

In addition, one of the engines drove a high-pressure fan that forced.....(không khí độc hại) from the refuse on the tipping platform across the fire

• air fryer

• air circulation

• foul air

• air resistance

You can achieve your goals __________(chỉ bằng phần nhỏ) the cost or effort usually required.