Right on 4 vocabulary module 5 (explanations version)

a clever idea

a large pile of something

to build

to create the plan or drawing for sth

a disease caused by germs or viruses

to notice carefully / to see, watch, perceive, or notice

to look like / similar to...

to join together

to demand

to move your finger and thumb together on a part on a screen to make an image smaller or bigger