重点讲解：
1. in a way (用于缓和语气)在某种程度上，在某些方面；
例句：In a way, I suppose I'm frightened of failing.
我想我有点惧怕失败qFIWvLhF|EXbf_[LkTxJ。
2. be keen on 热切的；热衷的；（对…）喜爱的，满怀热情的；
例句：Both companies were keen on a merger.
两家公司都很想合并F^hywYg_jdjYW=aocPl。
3. sth happen to sb （尤指不愉快的事）发生（在…身上）；(某人)遭到；遇到；
例句：If we had been spotted at that point, I don't know what would have happened to us.
如果当时我们被发现了，我不知道会有什么后果tx&lnyF|^6%r]3~n!。
4. change one's mind （使）改变主意；（使）改变决定；
例句：She's very young. She might change her mind about what she wants to do.
她很年轻，对于自己想要做的事情也许会改变主意g1aAZ*w)cJFxg(%308AP。