/ræt ||; ræt/noun
[C] an animal like a large mouse 大鼠
☞ Rats belong to the family of animals that are called rodents. 大鼠属啮齿类动物(rodent)。 rat race the way of life in which everyone is only interested in being better or more successful than everyone else 人与人的竞争
rat1/ræt; ræt/n [C] an animal like a large mouse 大老鼠
rat2v [I] ratted , ratting informal if someone rats on you, they tell someone in authority about something wrong that you have done【非正式】告发﹐打小报告: +on They’ll kill you if they find out you’ve ratted on them! 要是他们发现你告发他们了﹐会宰了你的!