请原谅我无知，duplex是什么呢？

Pardon my ignorance, but what is a 'duplex'?

《牛津词典》

她看着依旧那么年轻。她的保养秘诀是什么呢？

She still looks so young. What's her secret?

《牛津词典》

此刻做这件事的意义是什么呢？

What's the point of doing this at this point?

youdao

形成这些气态离子的结果是什么呢？

What's the consequence of forming these gas ions?

youdao

那些绿色的东西是什么呢？

What CAN all that green stuff be?

youdao

这里的化学原理是什么呢？

What is the chemistry here?

youdao

头发健康的关键是什么呢？

What is the key to healthy hair?

youdao

还不满意的原因是什么呢？

What are the reasons for still dissatisfaction?

youdao

设计这样一座建筑最重要的方面是什么呢？

What's the most important aspect in the design of such a building?

youdao

那么，障碍是什么呢？

So what are the stumbling blocks?

youdao

情人节礼物是什么呢？

What is the Valentine's gift?

youdao

机器人到底是什么呢？

What exactly is a robot?

youdao

那么问题是什么呢？

Ok, so what's the puzzle?

youdao

遗愿清单是什么呢？

What is a bucket list?

youdao

钻石到底是什么呢？

What is diamond after all?

youdao

鱼游到他身边说：“那么，她的愿望是什么呢？”

The fish came swimming to him and said, "Well, what is her will?"

youdao

原因是什么呢？

What's the cause?

youdao

你曾经在裁判小组看到的单个最好的表演是什么呢？

What is the single best performance you have ever been on the judging panel for?

youdao

如果你赢了，你计划花这笔钱的五种方法是什么呢？

What are the five ways you plan to spend the money if you win?

youdao

这是什么呢？

What is it?

youdao

那是什么呢？

What's that?

youdao

如果工业化农业要被取代，那么可行的替代方案是什么呢？

If industrial agriculture is to be replaced, what is a viable alternative?

youdao

那么，几乎完全可以描绘幸福的那种现代表达方式是什么呢？

After all, what is the one modern form of expression almost completely dedicated to depicting happiness?

youdao

你表现得很讲良心，但目的是什么呢？

You're being very scrupulous, but to what end?

《柯林斯英汉双解大词典》

但是这种区别的本质是什么呢？

But what will be the nature of that difference?

youdao

最受欢迎的活动是什么呢？

What are the most popular activities?

youdao

不同人最爱的运动都是什么呢？

What are different people's favourites?

youdao

它是什么呢？在什么地方可以找到它呢？

What is it, and where is it to be found?

youdao

“没有,”他回答说；“那会是什么呢？”

"No," he answered; "what can it be?"

youdao

那么，答案是什么呢？

What, then, is the answer?

youdao