cloud

名词 cloud:

1. any collection of particles (e.g., smoke or dust) or gases that is visible
2. a visible mass of water or ice particles suspended at a considerable altitude
3. out of touch with reality
4. a cause of worry or gloom or trouble
5. suspicion affecting your reputation
6. a group of many insects
   同义词：swarm

动词 cloud:

1. make overcast or cloudy
   同义词：overcast
2. make less visible or unclear
   同义词：obscure, befog, becloud, obnubilate, haze over, fog, mist
3. billow up in the form of a cloud
4. make gloomy or depressed
5. place under suspicion or cast doubt upon
   同义词：defile, sully, corrupt, taint
6. colour with streaks or blotches of different shades
   同义词：mottle, dapple
7. make milky or dull

1. The thick mist clouded the mountain-top.
   浓雾笼罩着山顶。
2. When there are black clouds you can tell it's going to rain.
   有乌云的时候，就知道快下雨了。
3. The sad news of her father's death was the only cloud on an otherwise happy year.
   她父亲的死讯是她愉快的一年中唯一伤心的事。

cloud

n.（名词）

A visible body of very fine water droplets or ice particles suspended in the atmosphere at altitudes ranging up to several miles above sea level.
云：十分细小的水滴或冰粒组成的可见的一团，悬垂于海面上高度达几英里的大气中
A mass, as of dust, smoke, or steam, suspended in the atmosphere or in outer space.
烟云，烟尘：灰尘、烟或蒸汽组成的一团，悬垂于大气或外部空间
A large moving body of things in the air or on the ground; a swarm:
一群：空中或地面中大群的可移动的一团；一群：
例句：
a cloud of locusts.
一群蝗虫

Something that darkens or fills with gloom.
黑暗，阴影：遮暗或充满朦胧的某物
A dark region or blemish, as on a polished stone.
黑斑，瑕疵：黑块或黑斑，如磨光的石头上的黑斑
Something that obscures.
朦胧，昏暗：不清晰的东西
Suspicion or a charge affecting a reputation.
疑云，耻辱：影响声望的疑问或控告
A collection of charged particles:
集合：电荷的聚集团：
例句：
an electron cloud.
电子团

v.（动词）
cloud.ed,cloud.ing,clouds
v.tr.（及物动词）
To cover with or as if with clouds:
使布满云：被云或好象为云所覆盖：
例句：
Mist clouded the hills.
雾遮住了山丘

To make gloomy or troubled.
使…朦胧不清：使变朦胧或陷入麻烦
To obscure:
使不清晰：
例句：
cloud the issues.
混淆争端

To cast aspersions on; sully:
玷污：诽谤；玷污：
例句：
Scandal clouded the officer`s reputation.
丑闻玷污了官员的声望

v.intr.（不及物动词）
To become cloudy or overcast:
使多云，使阴暗：
例句：
The sky clouded over.
天空中云层密布

<习惯用语>in the clouds
Imaginary; unreal; fanciful.
空想的：想象的；不真实的；爱空想的
Impractical.
不切实际的
来源：
Middle English [hill, cloud]
中古英语 [山丘，云]
from Old English clôd [rock, hill]
源自 古英语 clôd [岩石，山丘]

【引伸】
cloud.less
adj.（形容词）