1.云[C][U]
The sky became suddenly covered with dark clouds.
天空突然变得乌云密布。
2.(尘埃、烟等)云状物[C][(+of)]
3.(移动中的昆虫、鸟等的)一大群[C][(+of)]
A cloud of locusts hit the farm.
大群蝗虫袭击了那个农场。
4.阴影;阴云[C]
5.(大理石等的)黑斑[C]
及物动词 vt.
1.(云、烟等)覆盖,遮蔽
Smog clouded the whole city.
烟雾笼罩全城。
2.使阴暗;使模糊;使混浊[(+up)]
Her eyes were clouded with tears.
泪水使她双眼变得模糊起来。
3.使混乱
The decision will only cloud the issue.
这一决定只能使这一问题变得复杂起来。
4.使忧郁,搅扰
不及物动词 vi.
1.阴云密布[(+over/up)]
2.变暗;变模糊;变混浊
My glasses kept clouding up.
我的眼镜老是模糊不清。
3.(脸色等)阴沉下来
另外,Cloud 还是英文名字 克劳德
希望可以帮助到你,谢谢