短语词组短语a whole host of 大量a whole host of elements 因此a host of problems 很多问题a host of rivals 一大群竞争者;一群对手in a host of 在一个东道国的;在主机a host of children 一群孩子a host of fact 大量事实a host of guests 好多来宾A host of blunders 大摆乌龙阵 返回 a host of