初中used的用法总结

　　Things ain't what they used to be.

　　现在情况不比从前了。

　　The database could be used as a teaching resource in colleges.

　　数据库可以用作大学里的一种教学辅助手段。

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

　　你过去常见她吧？

　　They had got too used to the soft life at home.

　　他们实在是过惯了家里的安逸生活。

　　I used a long exposure for this one.

　　我这张照片用的曝光时间长。