在我们的试验中，这几块地条播后不久就下了大雨。

In our experiment, heavy rain was received shortly after the plots were (had been) drilled.

youdao

大雨下了一整夜。

It had been raining hard all night.

《牛津词典》

星期四下了一整天的雷暴大雨。

Heavy thundery rain fell throughout Thursday.

《柯林斯英汉双解大词典》

And in the meantime the rain had become a voluptuous shower.

这时外面下起了大雨。

耶鲁公开课 - 1945年后的美国小说课程节选