🪰通常一想到fly（蒼蠅）就覺得很討厭，但英文裡面 "being a fly on the wall" 講的可完全不是這麼一回事。今天 #AmericanEnglish 要介紹的慣用語是 fly on the wall（暗中觀察者）。你是否也曾經想要聽別人說話，卻不想被發現？如果有，那就符合這句成語所形容了喔。請與我們分享，你當過或曾經想當 fly on the wall 的經驗吧！
🪰Usually, we think of flies as a nuisance, but being a fly on the wall is a completely different matter. Today #AmericanEnglish introduces the idiom “fly on the wall.” Have you ever wanted to listen to a conversation without being noticed? If the answer is yes, then you've wanted to be a fly on the wall. Share an experience you've had or wanted to have as a "fly on the wall."
#EnglishIdiom #AmericanEnglish #LanguageLearning
