pick one还是pick up one?

pick one还是pick up one? pick out,pick up,pick at,pick on区别? pick them up还是 pick up them pick up him还是pick him up look at the paper on the floor,please pick it up 还是 pick them up? pick it up语法问题there's one dollar on the floor.pick __ (它)up?填什么 it吗 还是its There is some paper on the ground.Please___.pick it uo还是pick them up? pick up pick on pick after pick out这四种搭配是什么意思,有什么用法啊 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 to pick up one’s pace pick at pick from pick up pick out