rat

US /ræt/
UK /ræt/
"rat" picture
1.

老鼠, 大鼠

a rodent larger than a mouse, typically having a pointed snout and a long, hairless tail.

:
•
A large rat scurried across the alley.
一只大老鼠跑过小巷。
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The old building was infested with rats.
那座旧建筑里老鼠成灾。
:
rodent
2.

叛徒, 告密者

a person who deserts their friends or associates, especially in a time of trouble.

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He's a real rat for abandoning his team when they needed him most.
他真是个叛徒，在团队最需要他的时候抛弃了他们。
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Don't trust him, he's a known rat.
别相信他，他是个出了名的告密者。
:
traitorinformerdesertersnitchfink
1.

告发, 背叛

to betray someone or inform on them.

:
•
He threatened to rat on his accomplices if he got caught.
他威胁说如果被抓到就告发他的同伙。
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Don't rat me out to the boss!
别向老板告发我！
:
betrayinformsnitchfinksqueal
:
rat ondassie ratwater ratpack ratmole ratkangaroo ratbeaver rat