ex‧pand S3 W3 AC / ɪkspænd / 动词

1 [不及物和及物动词] to become larger in size, number, or amount, or to make something become larger → expansion 反义词 contract :

Water expands as it freezes.

Sydney’s population expanded rapidly in the 1960s.

exercises that expand the chest muscles

his expanding waistline

2 [不及物和及物动词] if a company, business etc expands, or if someone expands it, they open new shops, factories etc → expansion :

The computer industry has expanded greatly over the last decade.

The hotel wants to expand its business by adding a swimming pool.

the rapidly expanding field of information technology

expand into

We have plans to expand into the U.S. market.

3 [不及物动词] literary to become more confident and start to talk more :

After a few whiskies he started to expand a little.

expand on/upon something 短语动词

to add more details or information to something that you have already said :

Payne later expanded on his initial statement.