He was oblivious of what was happening.

他已经忘却发生什么了。

They rushed to see what was happening.

他冲出去看发生了什么。

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

似乎没有什么办法阻止这件发生。

One could not logicize about such happening.

这种不能以逻辑来解释。

The child at the back craned forward to see what was happening.

后面孩子探出头看看出了什么。

There is no fear of that happening.

那绝不可能发生。

There’s been a lot of toing and froing next door today. I wonder what’s happening.

今天隔壁在不停地来回折腾，不知道发生了什么。

Her words brought home the enormity of what was happening.

她话让人意识所发生情严重性。

Rob stood in the hallway, from where he could observe the happenings on the street.

罗布站在门廊里，从那儿他可以观察街上发生。

He caught me up on what's happening at the front.

他把有关前线最新消息告诉了。

There were some unusual happenings at school last week.

上星期在学校里发生了一些不寻常。

I try to keep in touch with what’s happening by reading the newspapers.

通过读报纸了解时。

When did you first get wise to what was happening?

你何时发？

I know nothing at all about the recent happenings there.

对那里近来发生一点儿也不知道。

Accidents are happening with increasing frequency.

故发生得越来越频繁。

The developments in this town represent in microcosm what is happening in the country as a whole.

这座城镇发展是整个国家发展缩影。

Hello! What's happening now?

哟！发生什么了？

Unda said the Ecuadorian government must "improve the port facilities at the Galapagos Islands to prevent such oil spill accidents from happening again."

恩达说，厄瓜多政府必须「改进加拉巴戈斯岛屿港口设施，以免这类漏油意外重演」。

Before falling asleep, Helen reviewed the day's happenings.

海伦在入睡以前回想了当天发生情。

The happening of debris flow is a complicated problem, and it is the outcome of polysynthesism coaction, this brought difficulty to analytical prediction of development trend of debris flow.

摘要泥石流发生与否是一个极其复杂问题，而且是由多种因素共同作用结果，这也给泥石流活动发展趋势分析预测带来了困难。