But how and when did it happen?

但这是什么时候怎样发生的呢？

youdao

And when did he give up trying?

他什么时候放弃尝试的？

youdao

What did we know and when did we know it?

我们知道些什么，又是什么时候知道的？

youdao

The National Trust for Historic Preservation has restored the building so it looks as it did when Lincoln and his family lived there.

VOA: special.2010.05.10

But how and when did it happen?

但这是什么时候怎样发生的呢

耶鲁公开课 - 死亡课程节选

Did you just Copy and Paste 50 times when you could have just used a loop that cycles 50 times?

你是不是复制粘贴50次,当你可以用一个循环来循环50次呢？

哈佛公开课 - 计算机科学课程节选

The implications of the questioning--What did she know and when did she know it?

CNN: AllPolitics - TIME This Week

What did he know, what did he see, and when did he see this?

FORBES: Mike Rice Justly Fired at Rutgers, But Should AD Tim Pernetti Be Next?

How did you decide and when did you decide to take it on?

NPR: Film Looks at Immigrants Caught in Slave Trade