What's all this about?

这究竟是怎么回事？

《新英汉大辞典》

And what's all this about global warming?

这一切又关全球变暖什么事？

youdao

And now, daughter, what's all this about you and Ashley?

现在你说，女儿，关于你和艾希礼，这到底是怎么回事呀？

youdao

And now Milton's in the position of asking, "What for? What's this all about? Look what happened to Edward King.

现在弥尔顿在问，“为了什么？，这都是为了什么？，看看爱德华·金。

耶鲁公开课 - 弥尔顿课程节选

He brings it up as if we know that this is what he's been talking about all the time.

他提出这个好像我们知道一样,这是他一直在说的东西。

耶鲁公开课 - 现代诗歌课程节选

Usually what I want to talk about is what's the smallest size class in which this function grows? With all of that, what that says b is that this we would write is order b.

通常我们想要的是,方法增长时最贴切的描述,也就是说，在这个问题上,算法关于。

麻省理工公开课 - 计算机科学及编程导论课程节选

What's all this about mangosteen juice preventing cancer, curing dyspepsia and erasing cataracts?

FORBES: The Thought Police

And that's what this alliance, that's what this effort is all about -- making sure that none of us think that it's somebody else's job, but rather we all accept our role to play in making sure that we have the best-educated citizenry in the world.

WHITEHOUSE: Helping America Become a ��Grad Nation��

That's what this is all about, that's why I'm here today, and that's why you're here today.

CNN: Thompson's September 7, 2007, speech in Des Moines, Iowa