look up有没有取决的意思

没有！look up的意思是：v.查阅;查找;探望;看望。

例句：

1. Students can use the dictionary to look up new words.学生会使用字典查阅生字。

2.I decided I would go to the Archive the next day and look up the appropriate issue.我决定第二天去档案馆查找对应的问题。

3.And in every city I traveled, I would look up old friends from college and meet them for dinner.我到过的每个城市中，我都去探望大学时的老朋友，和他们共进晚餐。