动词与介词或副词搭配构成的固定动词短语是指什么?

大部分都是动词副词结构比如pick up ,mop up,wake up,turn on,turn down,put on,try on了解动词副词结构的意义是：代词放中间,名词中间,后面均可而动词介词搭配比较少get on.get off,look at ,look after,look aroun...