pick up him还是pick him up

pick up him还是pick him up pick them up还是 pick up them pick one还是pick up one? 英语语法pick the rubbish up 还是pick up the rubbish 是pick it up还是pick up it? pick up pick up pick up pick out;pick up;pick over区别 pick up a pocket 还是pick a poket表示偷 摘花英语怎么说是pick flowers还是pick up flowers pick out,pick up,pick at,pick on区别? pick at pick from pick up pick out pick pick pick pick 对snacks提问用them还是it?例如：pick them up 还是 pick it up