1. After you.
　　你先请。
　　这是一句很常用的客套话，在进出门、上车等场合你都可以表现一下。
　　2. I just couldn't help it.
　　我就是忍不住。
　　想想看，这样一个漂亮的句子可用于多少个场合？下面是随意举的一个例子：I was deeply moved by the film and I cried and cried. I just couldn't help it. 太棒的句子了，我爱死它了。
　　3. We'd better be off.
　　我们该走了。
　　例句：It's getting late. We'd better be off .
　　4. Let's get started.
　　咱们开始干吧。
　　劝导别人时说：Don't just talk. Let's get started.
　　类似的还有：
　　let's start. let's do it right now.　let's hit sth. let's put our hands on sth.
　　5. I'm really dead.
　　我真要累死了。
　　坦诚自己的感受时说：After all that work, I’m really dead.