The children started to act up as soon as the teacher left the room.
老师一离开教室，孩子们就闹起来了。
2. ad lib 即兴而作，随口编
The comedian ad libbed most of his routine.
那个喜剧演员大多是即兴表演。
3. blah-blah-blah 说个不停
All she does is go "blah-blah-blah" all night.
她整夜说个不停。
4. hit it off 投缘，一见如故
They hit it off instantly and have been good friends ever since.
他们一见面就很投缘，从此成了好朋友。
5. zit 青春痘
Why is it that every time I have a hot date, I break out with a big zit
on my face?
为什么每次我有重要约会时，脸上都会冒出一个很大的青春痘呢?
