重点讲解：
1. give up 投降；认输；放弃；
例句：He gradually gave up his reformist ideas.
他逐步放弃了自己的改良主义思想zD[&Rlo^nEyD_,PQy。
2. in between （时间上）在…之间，介于…之间；
例句：In between, they had snatches of private talk.
在这中间，他们有时私下谈上几句-AI00Bp.oOI。
3. benefit from 获益；对…有益；有利于；
例句：She has never benefited from all that experience.
她从未得益于那个经验教训%bhD-jy)5(kI6u)EToF。
4. work out 想出，得到(解决方法)；解(谜)；
例句：She's all there; she will soon work out how to do it.
她很精明,2wSzPrsz^gwB。她会马上知道怎样做Xrkya_(W%Q;yXvC1KpP,。
5. sth. is not all it's cracked up to be 不如别人说的那么好；
例句：Package holidays are not always all they're cracked up to be.
全包旅游并不总像人们说的那么好uYDF%Y8cZRaQonq。