n.
- 云[C][U]
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The sky became suddenly covered with dark
clouds.
天空突然变得乌云密布。
- （尘埃、烟等）云状物[C][（+of）]
- （移动中的昆虫、鸟等的）一大群[C][（+of）]
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A
cloud of locusts hit the farm.
大群蝗虫袭击了那个农场。
- 阴影；阴云[C]
- （大理石等的）黑斑[C]
vt.
- （云、烟等）覆盖，遮蔽
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Smog
clouded the whole city.
烟雾笼罩全城。
- 使阴暗；使模糊；使混浊[（+up）]
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Her eyes were
clouded with tears.
泪水使她双眼变得模糊起来。
- 使混乱
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The decision will only
cloud the issue.
这一决定只能使这一问题变得复杂起来。
- 使忧郁，搅扰
vi.
- 阴云密布[（+over/up）]
- 变暗；变模糊；变混浊
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My glasses kept
clouding up.
我的眼镜老是模糊不清。
- （脸色等）阴沉下来
短语
Every cloud has a silver lining.
- 黑暗之中总有一丝光明。
under a cloud
- 受嫌疑
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Though the police could not find enough evidence, the man remained
under a cloud for several weeks.
虽然警方找不到足够的证据，那人还是被怀疑了几个星期。
- 失宠
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He used to work for the company but caused some trouble and left
under a cloud.
他曾经在那家公司工作，后来出了麻烦只好悻悻离去。
wait till the clouds roll by
- 等待良机到来
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Let's
wait till the clouds roll by.
我们应该等待时机。
cloud over
- 布满云
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The sky
clouded over.
天空云层密布。
- （脸色）阴沉
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On hearing the news, her face
clouded over.
一听到这消息，她的脸上顿生愁云。
辨析
n.
- a visible mass of condensed watery vapour floating in the atmosphere, typically high above the general level of the ground.
▸an indistinct or billowing mass, especially of smoke or dust.
- a state or cause of gloom or anxiety.
- an opaque patch within a transparent substance.
v.
-
(usu. cloud over)
(of the sky) become full of clouds.
- make or become less clear or transparent.
- make unclear or uncertain.
▸spoil (something).
- (of the face or eyes) show sadness, anxiety, or anger.
Phrase
- in
(or with one's head in)
the clouds
out of touch with reality. - on cloud nine
(or seven)
extremely happy.
[with ref. to a ten-part classification of clouds in which ‘nine’ was next to the highest.]
- under a cloud
under suspicion or discredited.
Derivative
- cloudless adj.
- cloudlessly adv.
- cloudlet n.
History
The earliest use of cloud is recorded in Old English, in the sense ‘a mass of rock; a hill’; from this sense arose a number of place names, such as Thorp Cloud, a hill in Derbyshire. Later it was used in the same sense as clod to mean ‘a lump of earth or clay’; indeed it is likely that cloud, clod, and clot come ultimately from the same root. The current sense, ‘mass of watery vapour’, is first recorded in a reference in the medieval work the Cursor Mundi to the sun climbing the clouds.
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