Quite a few people were milling about, but nothing was happening.

What happens when food and gasoline supplies run low?

如果食物和汽油供应减少，会出现什么情况呢？

If one looks at the longer run, a lot of positive things are happening.

如果把目光放长远些，就会发现很多积极的事情正在发生。

Why don't we just wait a little while and see what happens.

为什么不再等一下看看事态的发展。

There is no fear of that happening.

那事绝不可能发生.

We'll have to wait and see what happens.

我们只好等等看将会发生什么。

"God knows what's happening in that madman's mind," she muttered.

她咕哝着：“天知道那个疯子在想什么。”

This happens whether the children are in two-parent or one-parent families.

不管孩子是生活在双亲还是单亲家庭，这种情况都会发生。

He hasn't looked very carefully into what was happening inside the ruling party.

他没有认真研究执政党内部正在发生什么。

He happens to own half the land round here.

他恰好拥有这里一半的土地。

There is a reason for every important thing that happens.

每件重要事情的发生都有原因。

Seemingly, we can do nothing to prevent this from happening.

我们似乎没有什么办法阻止这件事发生.

It kind of gives us an idea of what's happening.

这让我们大概了解了正在发生的事情。

An investigation is underway to find out how the disaster happened.

调查已经展开，以查明灾难是如何发生的。

The project would give scientists new insights into what is happening to the earth'satmosphere.

该项目将使科学家对地球大气层的状况有更新的深入了解。

Her son used sign language to tell her what happened.

她儿子用手语告诉她发生了什么事。

Try to keep calm and just tell me what happened.

镇静点，告诉我出了什么事。

Now, in your own time, tell me what happened.

现在慢慢告诉我发生了什么事。

I happened to bump into Mervyn Johns in the hallway.

我在走廊里意外碰见了默文·约翰斯。

I felt a little bump and I knew instantly what had happened.

我感觉到一点儿轻微的碰撞，便立刻意识到发生了什么。

"What's happened to her?" — "I'm sure she won't be long."

“她怎么回事？”——“我相信她快到了。”