679. You can kill two birds with one stone.一举两得。

678. Why don't you attend an aerobic class? 你为什么不去参加一个有氧健身班呢?

677. Why don't I pick you up at your house? 为什么不让我去接你呢?

676. Where can we make the insurance claim? 我们可以在哪里提出保险赔偿?这个无法与那个比较。

675. What's the point of going to college? 上大学有何用?

674. True and False have opposite meanings. 真与假含义完全相反。

673. To tell the truth, I don't like disco. 说实话，我不喜欢迪斯科。

672. To know everything is to know nothing. 样样通，样样松。

671. This one cannot compare with that one. 这个与那个无法比较。

670. There was a notice in the supermarket. 超市里有一个布告。