看绝望的主妇学英语习语：You’re telling me!

You’re telling me: Used to indicate agreement with an observation; Used to emphasize that you are already well aware of something or in complete agreement with a statement. Used for saying that you already know and completely agree with what somebody has just said.

中文释义：You’re telling me字面意思是“你在告诉我”，但它实际要表达的意思却是赞同对方所说的话，或是对方所说的话你早已知道。可理解为：就是。没错。我早知道了。也表示“这还用你说？”是一种挖苦的说法。比如：You’re telling me, that book was one of the best I’ve ever read.”（还用你说？那本书是我看到的最好的一本。）