Unit 3 (Vocabulary Revision) Go Ahead

the area in a factory where parts of a product are put together, piece by piece

someone who works for free, often for a charity

a machine that is designed to do specific tasks, often very quickly

to become better or make something better

What is this called?

What is this called?

What is this called?

something that makes it more difficult to do specific things (for example, when you have to use a wheelchair)

to make something that is broken work again

the state of being safe