動詞 fall in:

1. break down, literally or metaphorically
   同義詞：collapse, cave in, give, give way, break, founder
2. to take one's place in a military formation or line
3. become part of; become a member of a group or organization
   同義詞：join, get together

1. It is strange that he should fall in love with such a snobbish girl.
   說來真怪，他居然與那位高傲的女孩子墜入情網(wǎng)。
2. A fall in demand for oil tankers has put jobs in jeopardy.
   油輪需求量的下降使很多工作職位受到威脅。
3. The necessary outcome of a war is a fall in production.
   戰(zhàn)爭帶來的必然結(jié)果就是生產(chǎn)力下降。
4. It is natural that he should fall in love with such a beautiful girl.
   他愛上那位美麗的姑娘是很自然的事。
5. A bugle call came round for us to fall in.
   軍號聲傳來，要我們排隊(duì)集合。