无话可答: be at a loss for words; have no fitting reply to make; have nothing to say in reply; have no words to answer
简: Ⅰ形容词(简单) simple; simplified; brief 短语和例子从简 conform to the principle of simplicity; 简而言之 in brief; in short; put it in a nutshellⅡ动词1.(使简单; 简化) simplify 短语和例子精兵简政 better troops [staff] and
