The plane climbed until it was clear of the clouds.
飞机爬升直至穿出了云层。
The sky was full of dark masses of clouds.
天空中乌云密布。
A cloud of dust rose as the truck drove off.
卡车开过时扬起一片灰尘。
The sun disappeared behind a bank of clouds.
太阳消失在一大片云后面。
It was beginning to cloud over.
天空开始阴云密布。
The dark clouds in the sky meant that a storm was coming.
天空中的乌云预示暴风雨即将来临。