胆小如鼠

　　As timid as a mouse.

　　Cannot say 800 to a goose.

　　Afraid of one's own shadow.

　　Have one's heart in a nutshell.

　　To be chicken-hearted.

　　As timid as a rabbit.

　　eg：She is as timid as a mouse and does not know how to answer the question.

　　同义词：前怕狼，后怕虎 Too much taking heed is loss.

　　反义词：一身是胆 With plenty of guts.