used的否定用法总结

　　例：

　　We're used to the noise from the traffic now.

　　现在我们已经适应车辆往来的噪音了。

　　All I know is that she used to work in a bank.

　　我只知道她曾在银行工作过。

　　Things ain't what they used to be.

　　现在情况不比从前了。

　　You used to see a lot of her, didn't you?

　　你过去常见她吧？