视频概述

1. 查找；查阅

Look up in the dictionary and you'll find what you want.

查一查字典你就明白了。

2. 拜访

I want to look my old professor up, it's been a long time since I last saw him.

我想去拜访一下我的老教授，上次看到他已经是很久之前了。

3. 向上看 look+up