clouds
n. 云彩，白云（cloud 复数形式）
v. 使暗淡（cloud 的第三人称单数形式）；使布满阴云
例句
Clouds drifted across the sky.
朵朵浮云在空中飘过。
《牛津词典》
The storm clouds were gathering.
暴风雨乌云正在聚集。
We were flying above the clouds.
我们在云层上面飞行。
