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。
I read much less now than I used to.
我现在看的书比过去少得多。
Am I right in thinking that you used to live here?
我想你过去在这里住过，对吗？