名词大老鼠; 似鼠动物; <非正式>鼠辈，卑鄙小人
不及物动词捕鼠; <俚>背叛，告密
1. smell a rat : 感到不妙；
1. smell a rat : 感到不妙；
不及物动词
3. They've ratted on us.
他们背叛了我们。
名词
1. Rats carry very nasty diseases.
老鼠传播非常严重的疾病。
1. 大白鼠：若无特别注明,则为大白鼠(rat)以食入方式之实验数据___ 在固定浓度时经一定时间(通常14小时)之暴露后会造成半数试验动物死亡之浓度为半致死浓度. 本栏位应注明试验动物及吸收途径,若无注明,则为大白鼠(rat)吸入方式之试验数据,一般观察期为 14 天
2. rat：renal function tests; 肾功能
3.
3. rat：registration authority terminal; 受理点
4. rat：radio frequency therapy; 肝肿瘤
5. rat：reentrant atrial tachycardia; 折返性房性心动过速
1. 老鼠;耗子
A rat is an animal which has a long tail and looks like a large mouse.
rat在线翻译
e.g. This was demonstrated in a laboratory experiment with rats.
在实验室用老鼠进行的实验证明了这一点。
e.g. ...a rat-infested derelict building.
鼠灾泛滥的废弃建筑
2. 卑劣的人；不忠实的人；小人
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.
e.g. What did you do with the gun you took from that little rat Turner?
你是怎么处理从那个叫特纳的小叛徒手里得到的枪的？
3. 告密;出卖
If someone rats on you, they tell someone in authority about things that you have done, especially bad things.
e.g. They were accused of encouraging children to rat on their parents.
他们被指控唆使儿童告发自己的父母。
4. 违约；食言
If someone rats on an agreement, they do not do what they said they would do.
e.g. She claims he ratted on their divorce settlement.
她声称他违反了他们的离婚协议。
5. 怀疑有问题；发现不对头；有所警觉
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.
e.g. If I don't send a picture, he will smell a rat...
如果我不寄出照片，他将有所察觉。
e.g. Though Lloyd George's behaviour seemed curious, Haig still did not smell a rat.
尽管劳埃德·乔治的行为古怪，黑格仍然没有任何怀疑。