"Why would you ever want to clone humans," Westhusin asks, "when we're not even close to getting it worked out in animals yet?"

“为什么你想要克隆人类，”威斯苏森问道，“而我们甚至还没有成功克隆动物呢？”

youdao

The army has not yet proffered an explanation of how and why the accident happened.

军队还没有提供对该事故如何发生以及为什么发生的解释。

《柯林斯英汉双解大词典》

Why not tarry yet a little?

为什么不再多待一会儿呢？

youdao

Doctors do not yet know why this is true.

VOA: special.2010.06.15

I have a way to account for that, but it's going to take to the end of my argument to do that, so I'm going to argue that that's significant, but I'm not going to talk about why it's significant yet.

我对那有自己的理解，但是我在最后才会告诉你们，我要跟你们说，那点的意义是非常重大的，但我现在还不能谈论它的重大意义。

耶鲁公开课 - 1945年后的美国小说课程节选

That is one of the major points as to why deafness has not gotten a cure yet.

这就是到目前为止,还没有对策的一个主要原因。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

The authors note that it is not yet known why women with AF are more susceptible to stroke.

FORBES: In AF, Women Have A Bigger Risk Of Stroke Than Men

It is not yet clear why investors have started to return.

FORBES: Analyst: Google To Sell Nearly 10 Million Tablets In 2013

It bothered me that I had not yet understood why.

NEWYORKER: Hand on the Shoulder