中英成语俚语800对052：不知所措

　　不知所措

　　Stand at gaze.

　　To be at loose ends.

　　To be up a tree.

　　eg：He was at a loss as to what to do next.

　　中英俚语俗语来源：三国志·吴志·诸葛恪传：“哀喜交并，不知所措。”

　　同义词：六神无主 To be all at sea.

　　反义词：胸有成竹 Have an ace up ones sleeve.