沉雷大作，恐怕马上就要下雨了。

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

一道闪电划过长空，宛如横空飞过的闪着磷光的翅翼，随即，空中滚过了隆隆的沉雷。

A light flapped over the scene, as if reflected from phosphorescent wings crossing the sky, and a rumble filled the air.