下午天突然下雨了。

In the afternoon it rained suddenly.

《新英汉大辞典》

我们刚要出发天突然下雨了。 。

We were about to set out when it began to rain.

youdao

当我在花园浇水时，天突然下雨了。

When I was watering the garden, it began to rain.

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我正要动身天突然下雨了。

I was about to start when it suddenly began to rain.

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昨天因为天突然下雨了，所以我们取消了野炊。

Because it rained suddenly, we cancelled the picnic yesterday.

youdao

昨天因为天突然下雨了，所以我们取消了野炊。

It was because it rained suddenly that we cancelled the picnic yesterday.

youdao

但是，在4月1日这天，当斯密斯运载的所谓南极冰山的大船到达港口时，老天突然开始下雨，船上用泡沫和刨冰块塑造的冰山立马被雨水冲走了，他的恶作剧在大自然力量的作用下露馅了。

It started to rain, and the foam and shaving cream that were posing as ice washed away. (via Museum of Hoaxes)

youdao

天突然暗下来，快要下雨了。

It suddenly darkened up and threatened to rain.

youdao

天突然暗下来，快要下雨了。

It suddenly darkened up and threatened to rain.

youdao