翻译成英语：天空乌云密布,电闪雷鸣,不一会儿,下起了瓢泼大雨.

The sky blackened, the lighting flashed and soon it began to rain heavily.

There are dark clouds with lighting flashes and thunder in the sky, it rains heavily in a moment.

天空乌云密布,电闪雷鸣,不一会儿,下起了瓢泼大雨.The sky was covered with thick dark clouds,and soon followed by lightnings and thunders.In no time at all,it was down pouring.以上是最标准的英语翻译,...

the clouds in the sky heavily ,the lightning is accompanied with thunder ， after a while， it rains