thunder cloud

同根派生

A tornado is a fast rotating column of air extending from thunder clouds to the ground.
卷风是一快速旋转的气团,自雷雨云伸展至地面。
Bruise-colored, steel-colored, quilted with thuggish thunder clouds or smothering snow clouds-till it lets go for a while, showing the sunny blue or galactic black beyond.
淤青色，金属色棉絮般的乌云或浓烟般的雪云，直到它们消散，蓝天般的蓝色或银河般的黑色便开始出现。"
A cloud is a mass of vapor in the sky.
云是天空中的水汽团。
Echo Structure for Splitting Process of A Long Life Cycle Thunder Cloud
一例长生命史雷暴云分裂过程的回波特征
It's not exactly a walk in the park though :-) Stay clear of evil black birds and stingy bees, barking dogs, lightening thunder clouds, that annoying next door girl Suzy and much more.
这不完全是在公园散步，你要小心一些邪恶黑鸟类和蜜蜂、狗吠、雷雨云和讨厌的隔壁女孩苏茜等等。