USAGE NOTE 用法说明: see, look at, and 和 watch
If you see something, you notice it with your eyes, whether or not you want to. see（看见，看到）是指眼睛注意到了什么事物，与你愿不愿意无关:
I saw some terrible things during the war. 战争中我目睹了一些可怕的事情。
When you look at something, you deliberately turn your eyes towards it. look at 是指有意地转过眼睛去看:
Look at that rainbow! 看那彩虹！
Watch means that you look at something that is happening or moving for a period of time. watch 是指在一段时间里观看正在发生或活动的事物:
He was watching TV. 他在看电视。
They're going to watch the game. 他们要去观看比赛。