【例句】He made a mistake again. It's because he is not dry behind the ears. 【误解】他又错了。这就是他耳朵后面水没干的缘故。 【正确】他又错了。这是因为他缺乏经验。 【说明】not dry behind the ears意思是“缺乏经验”、“乳臭未干”。