英[ræt]美[ræt]
记忆方法
词源词根法
来自中古英语rat，老鼠，来自古英语raet，老鼠，来自Proto-Germanic*ratto，刮，咬，来自PIE*red，刮，咬，词源同rodent,eraser.
noun(名词)
双解例句
noun(名词)
小知识
Rats are mouse-like rodents with long tails, pointed noses, and whiskers. Rats are often associated with filth and disease. So, if someone calls you a rat, it's not like being called a fox. It's an insult.
Many people keep rats as pets, and scientists often study rats because their psychological behavior is actually very similar to that of humans. Rats are intelligent and adaptable, but wild rats also carry disease and sometimes bite humans. These negative traits have led to the informal meaning of rat, “hateful person,” “liar,” or “double-crosser.” You can also use rat as a verb to mean “betray or snitch on.”
实用短语
常用短语
单词用法
单词解说1
rat用作名词时意思是“鼠”，转化为动词意为“捕鼠”，引申可表示“背叛”“告发”“食言”。
单词解说2
rat只用作不及物动词，在口语中常与介词on连用。
近似单词
rot v.（使）腐烂；腐朽