cloud amount

例句：

1. 1.The weather forecast predicts a cloudy day with high winds.
   天气预报预测将会有阴天和大风。
2. 2.The clouds were so thick that they obscured the sun's light.
   云层非常厚，以至于遮蔽了太阳的光。
3. 3. The cloud amount is expected to increase as the storm approaches.
   预计随着风暴的临近，云量会增加。