1.wear
一般指穿或戴在身上的衣服和装饰品．强调的是一种穿着的状态．
例：She was wearing a red T-shirt.
2.dress up
指盛装打扮的意思．这是个固定词组,没有被动时态．
例：If you dress up,I will take you to the party.
3.put on
强调穿衣服的动作．
比如 put on something/ put something on