ONE PHRASE, IN CONTEXT
what's up with
……怎么回事；……有什么问题（非正式询问）
GET TO KNOW THE MEANING
读懂它，也学会这样说。
01……怎么回事；……有什么问题（非正式询问）
IN A SENTENCE
What's up with the security lights flickering every time the elevator starts?
电梯每次启动时安保灯都会闪，这是怎么回事？