previous各种词性

　　This is a great improvement on your previous work.

　　你的工作比先前有很大进步。

　　This problem is the reverse of the previous one.

　　这个问题和上一个问题相反。

　　Previous to this, she'd always been well.

　　这以前，她身体一向很好。

　　This house doesn't compare with our previous one.

　　这房子比不上我们以前的。

　　She has two children by a previous marriage.

　　她和前夫有两个孩子。