rat

1. N-COUNT A rat is an animal which has a long tail and looks like a large mouse. 老鼠

This was demonstrated in a laboratory experiment with rats. 这点通过在实验室中用老鼠做试验得到证明。

2. N-COUNT If you call someone a rat, you mean that you are angry with them or dislike them, often because they have cheated you or betrayed you. 卑鄙小人[非正式]

What did you do with the gun you took from that little rat Turner?

你要用从卑鄙小人特纳那里弄来的那支枪干什么呢？

3. V-I If someone rats on you, they tell someone in authority about things that you have done, especially bad things. 告发[非正式]

They were accused of encouraging children to rat on their parents. 他们被指控怂恿孩子们告发他们的父母。

4. V-I If someone rats on an agreement, they do not do what they said they would do. 违约[非正式]

She claims he ratted on their divorce settlement. 她声称他违背了他们的离婚协议。

5. PHRASE If you smell a rat, you begin to suspect or realize that something is wrong in a particular situation, for example that someone is trying to deceive you or harm you. 感觉事情不妙

If I don't send a picture, he will smell a rat. 如果我不寄张照片，他会起疑心。