这是怎么回事 meaning in English

what's all this about

My lady noticed the change, and asked me what i thought about it .
夫人看出这个蹊跷，问我这是怎么回事。
"you don't say so!" said jack in a tone of great surprise. "now how could that have been? "
“那不会吧！”杰克用大吃一惊的语调说道，“这是怎么回事呢？”
"oh, dear me, what's this, what's this!" he said, rubbing his head and walking about with his good-humoured vexation in the room .
“唉，天哪，这是怎么回事，这是怎么回事！”他一边说，一边搔着头，在屋里踱来踱去，他的态度很和蔼，只是有点着急。
Dominique ) what ' s all this ? - ( henry ) there ' s no room
这是怎么回事? -没地方了
What are you . . . ? what is this ? what is this
你在. . . ?这是怎么回事?怎么回事

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