finish up your plate; finish your plate up; finish your plat

这里要搞懂finish up 是动副结构,还是动介结构对于动副结构的词组,要领是,代词放中间,名词,中间后面均可动介结构的词组,要领是,无论名词,代词,都要放在介词之后比如,pick it up 对,pick up it 错,pick the pen up=pick up the pen(动副结构）look at it 对,look it at 错（动介结构）这里finish up 是动副结构因此,finish up your plate=finish your plate upfinish your plate 也可以,口语里用都是吃完饭的意思,把盘子里的东西消灭光的意思