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=pi...