重点讲解：
1. come true (梦想、愿望或预言)成真，成为现实；
例句：His wish to be an actor has come true.
他想当演员的愿望实现了。
2. write down 写下；记下；
例句：I want to write down what you just said.
我想把你方才所说的写下来。
3. even if 即使；尽管；纵然；
例句：We should practice economy even if we are rich.
即使我们富裕了也仍应该厉行节约。
4. happen to （尤指不愉快的事）发生（在…身上）；(某人)遭到；遇到；
例句：Things always seem to happen to him.
他好像总不顺利
