wear是强调穿在身上的状态wear后可以用CLOTHES
dress in强调装扮,打扮dress sb in或sb be dressed in
dress 既可表示穿着衣服（状态），也表示穿上衣服（动作）。
dress +sb. : She dressed her baby.
He dresses well.
人＋ Be dressed in +衣服。
Wear：只表示穿的状态。“穿着”
She is wearing a new coat。
Put on 表示穿的动作及过程。
He put on his coat and went out.
Have on 穿着，戴着（状态）