英语的一些介词.throw things at you——look down on you——on（at） the ba

look down on和look down at的区别? 英语 —Look at the sign on the right.—Oh,parking ____________he Look at the map!Can you s____ China on it? look at the man——（run)down the street, Kate ,please () (look) at these things on the sofa. I look down on you disdain look down on you look down;look at;look down at;look down on区别? 用适当的介词填空Look at the sign：No t——.The clothes are d——.You don' What can you()on the chair?A.look B.look at C.see D.watch You must not look only at the surface of things ! 请教“What do you do at Christmas"这里的介词为什么用at 而不是用on?