苏珊：他们在干什么？

Susan: What are they doing?

youdao

这些小朋友都在学校。他们在干什么？

The children are at school. What are they doing?

youdao

当地震发生时，他们在干什么？

What were they doing when the earthquake occurred?

youdao

他们在干什么他们在听cd光盘。

What are they doing? They're listening to a CD.

youdao

Max告诉过你他们在干什么吗？

Did Max tell you what they're doing over there?

youdao

他们在干什么？正在看篮球比赛。

What they? They a basketball game.

youdao

所以，我们要观察，看他们在干什么。

And so we are simply watching to see what they're doing.

youdao

我们走近哪些老年人看看他们在干什么。

We got close to the old people to see what they were doing.

youdao

我不大清楚他们在干什么。

I am not sure what they are do.

youdao

你不看看他们在干什么呢？

Don't you see what they are doing?

youdao

看动作猜猜他们在干什么？

Look at them and guess what they are doing.

youdao

“他们在干什么？”“怎么了，熊爸爸？”

Are they doing here? What's the matter, Papa?

youdao

他们在干什么呢？他们在沙滩上躺着晒太阳。

What are they doing ? They are lying and enjoying the sun on the beach.

youdao

找出他们在干什么？

Let's find out: what are they doing?

youdao

丹尼尔：噢，看，那边有好多人啊。他们在干什么呢？

Daniel: Oh, look, there are so many people over there. What are they doing?

youdao

看来，他们知道自己在干什么。

They seem to know what they're doing.

《牛津词典》

大家都在干什么？他们在锻炼。

What's everyone doing now? They are exercising.

youdao

你不清楚他们在会上干什么。

You're not sure what they do at these meetings.

youdao

下去看看他们在楼下干什么。

Go down and see what they are doing downstairs.

youdao

后来他才弄明白他们是在干什么：他们在取暖。

Only later did he learn what they were doing: they were getting warm.

youdao

显而易见，苹果正在电视行业有所行动，但没人知道他们到底在干什么。

It's obviously doing something, but nobody can quite tell what it is.

youdao

你能告诉我他们昨天这时候在干什么吗？

Can you tell me what they were doing this time yesterday?

youdao

他们要求知道我一直在干什么。

They demanded to know what I had been doing.

youdao

当他们来看你时，你在干什么？

What were you doing when they came to see you?

youdao

应当让他们经常知道我们这里在干什么。

They should be kept informed of what we are doing here.

youdao

应当让他们经常知道我们这里在干什么。

They should be kept informed of what we are doing here.

youdao