卷层云的英文：
cirrostratus (cloud)

参考例句：

A high - altitude,thin hazy cloud,usually covering the sky and often producing a halo effect.
卷层云一种薄雾状高空云，常覆盖天空并产生光晕效应

cirrostratus是什么意思：
n. 卷层云
cloud是什么意思：
n. 云；云状物；阴影；大群；黑斑
v. 使忧郁，暗淡；以云遮敝，乌云密布；使混乱，不清楚；玷污

Cloud the issues.
混淆争端

There was heavy cloud and a lowering cloud base.
阴云密布，而且云层愈来愈低。

cloud over;(of the sky)become covered with clouds
（指天空）布满了云.

The moon was obscured by the clouds.
月亮被云遮暗了。

To cause to be obscured;cloud.
使模糊；遮挡