我突然明白了他在做什么。

I suddenly cottoned on to what he was doing.

《牛津词典》

让我感到愧疚的是，他在做大部分的工作。

I feel bad that he's doing most of the work.

《柯林斯英汉双解大词典》

“他会以为他在做梦。”玛丽叫道。

"He will think he is in a dream," cried Mary.

youdao

他在做某种事。

He's up to something or other.

youdao

让其他的人也知道他在做什么工作。

Let others know what they are doing.

youdao

我们得知道他在做什么，为谁工作。

We need to find out what he was doing, and who he's working for.

youdao

两小时之前的时候他在做什么？

What did he do two hours ago?

youdao

当他在做家庭作业时，我走了进来。

I came in when (while) he was doing his homework.

youdao

（时间段）他在做练习时睡着了。

He fell asleep while he was doing exercises.

youdao

他在做出这个重要决定前犹豫不决。

He paused before making the important decision.

youdao

我不知道。我只知道他在做生意。

I've no idea. I only know he's been doing business.

youdao

他在做这个项目的时候，正受到攻击。

He was under attack when he worked on the project.

youdao

他在做实验时想到了一个绝妙的主意。

A wonderful idea struck him when he did the experiment.

youdao

他在做出决定前仔细考虑了这个问题。

He contemplated the problem before making a decision.

youdao

你认为你了解他在做什么吗？

What do you think he is doing?

youdao

他在做什么他不清楚。

What he was doing was not clear to him.

youdao

他在做饭的时候切伤了手指，留下了伤疤。

The cut on his finger from when he was cooking left a scar.

youdao

有一阵子没见杰克了，不知道他在做什么。

I haven't seen Jack for a while, wonder what he's been doing.

youdao

无法知道他在做什么。

There is no knowing what he is doing.

youdao

他在做英语语法练习。

He is doing an exercise in English grammar.

youdao

他在做什么饭？食物。

What's cooking? Food.

youdao

他在做生意中赚了一些钱，但他不会富起来。

He makes a certain profit from his business but he'll never be rich.

youdao

今天他在做些什么？

What is he doing today?

youdao

他在做什么菜？鱼！

What's he cooking? Fish!

youdao

这是当他在做一个小肿瘤切除手术时被发现的。

The discovery was made while Snow was having surgery to remove a small growth.

youdao

他在做这件事的同时，还一直在学习其他的东西。

While he has been doing this, he has been learning other things as well .

youdao

他在做英语练习。

He is doing exercises in English.

youdao

他在做英语练习。

He is doing exercises in English.

youdao