不及物动词
1. 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。
2. The cat went ratting.
猫去捉老鼠了。
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的反义词
2. rat：renal function tests; 肾功能
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的意思
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。
noun
1. any of various long-tailed rodents similar to but larger than a mouse
2. a pad (usually made of hair) worn as part of a woman''s coiffure
3. one who reveals confidential information in return for money
Synonym: informerbetrayersquealerblabber
4. a person who is deemed to be despicable or contemptible
e.g. only a rotter would do that
kill the rat
throw the bum out
you cowardly little pukes!
the British call a contemptible person a `git''
Synonym: rotterdirty dogskunkstinkerstinkpotbumpukecrumblowlifescum bagso-and-sogit
5. someone who works (or provides workers) during a strike
Synonym: scabstrikebreakerblackleg
verb
1. give away information about somebody
e.g. He told on his classmate who had cheated on the exam
Synonym: denouncetell onbetraygive awaygrassshitshopsnitchstag
2. catch rats, especially with dogs
3. give (hair) the appearance of being fuller by using a rat
4. take the place of work of someone on strike
5. employ scabs or strike breakers in
6. desert one''s party or group of friends, for example, for one''s personal advantage