one of 其中一个
He is one of the best doctors in the world.
他是世界上最好的医生之一
look up查询
If you don't know a word,you can look it up in a dictionary.
如果你有不识的字,可以查字典.
look out【口】小心;注意
Look out!It's dangerous!
小心!很危险!
watch over照管
Will you watch over my clothes while I have a swim?
我去游泳,你帮我看一下衣服好吗?
take away带走,拿走
Who took away my pen?
谁拿走了我的钢笔?