rat是什麼意思

rat英音：[ræt]美音：[ræt] 名詞 n. [C]1.鼠Rats carry very nasty diseases. 老鼠傳播討厭的疾病。 2.【口】卑鄙小人;叛徒;告密者3.【美】【口】女用發墊不及物動詞 vi. 1.捕鼠The cat went ratting. 貓去捉老鼠了。 2.背叛;密告[(+on)]They said they'd help but they've ratted on their friends. 他們說他們會幫忙的,但他們卻背叛了朋友。