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rat
[rAt]
n.
老鼠

RAT
=Rocket-Assisted Torpedo火箭助推鱼雷

rat
rat
AHD:[r²t]
D.J.[r#t]
K.K.[r#t]
n.（名词）
Any of various long-tailed rodents resembling mice but larger, especially one of the genus Rattus.
鼠，家鼠：似鼠但比鼠大的长尾巴啮齿动物中的任意一种，特别是属于家鼠 属的动物
Any of various animals similar to one of these long-tailed rodents.
似鼠动物：长尾巴且似鼠的啮齿目动物
Informal A despicable, sneaky person, especially one who betrays or informs upon associates.
【非正式用语】 鼠辈，卑鄙小人：令人生厌，狡猾的人物，特别是出卖或告发同伴的人
A pad of material, typically hair, worn as part of a woman's coiffure to puff out her own hair.
女用发垫：一团垫状物，通常由头发组成，戴在女人头上作为头饰来达到蓬松的效果
v.intr.（不及物动词）
rat.ted， rat.ting， rats
To hunt for or catch rats, especially with the aid of dogs.
捕鼠：寻找或猎捕老鼠，特指用狗猎捕
Slang To desert or betray one's comrades by giving information:
【俚语】 出卖：告地情报抛弃或背叛同志：
ratted on his best friend to the police.
把他最好的朋友出卖给警察

Middle English
中古英语
from Old English ræt
源自 古英语 ræt

rat
[rAt]
n.
鼠
卑劣的人；不忠实的人

smell a rat
觉得可疑

rat
vi.
-tt-
捕鼠
（常与on连用）背叛；背信
They've ratted on us.
他们背叛了我们。

rat
[rAt]
vt.
[俚]诅咒, 责骂

R-me if I'll do it .
绝对不干。

RAT
=Rocket-Assisted Torpedo火箭助推鱼雷;
Rocket-launched Antisubmarine Torpedo 火箭发射式反潜鱼雷

rat
中古英语ratte〈古英语ræt

是。
rat

n.[C]
1. 鼠
Rats carry very nasty diseases.
老鼠传播讨厌的疾病。
2. 【口】卑鄙小人;叛徒;告密者
3. 【美】【口】女用发垫
vi.
1. 捕鼠
The cat went ratting.
猫去捉老鼠了。
2. 背叛;密告[(+on)]
They said they'd help but they've ratted on their friends.
他们说他们会帮忙的,但他们却背叛了朋友。

rat
[rAt]
n.
老鼠

RAT
=Rocket-Assisted Torpedo火箭助推鱼雷