It's going to rain, because the thunder is rumbling outside.

沉雷大作，恐怕马上就要下雨了。

youdao

Woke up in Brahmkal to rumbling thunder and now thick rain. It is cool and windy.

由于隆隆的雷声，我在布茹阿姆·卡勒醒过来，现在下着大雨。

youdao

Woke up in Brahmkal to rumbling thunder and now thick rain. It is cool and windy.

由于隆隆的雷声，我在布茹阿姆·卡勒醒过来，现在下着大雨。

youdao