实战口语情景对话 第1238期:Have you ever been caught in a lie? 撒谎被拆

重点讲解：
1. a number of 若干；许多；
例句：She retained a number of copies for further annotation.
她保留了许多副本以便作进一步的注解。
2. as usual 像平常一样；照例；
例句：Today, as usual, he was wearing a three-piece suit.
像往常一样，他今天穿的是三件套。
3. by the way 顺便地；附带说一句；
例句：By the way, how did your seminar go?
对了，你的研讨会进行得怎样？
4. 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 anything should happen to you, follow my advice.
万一你碰上什么意外，照我的话去做。