●letthecatoutofthebagtotellasecretcarelesslyorbymistake(无意中或错误地)泄密◆Iwantedittobeasurprise, butmysisterletthecatoutofthebag.我本想来个惊喜,但我妹妹却先说漏了嘴。➨ WORD BUILDING 词汇扩充A young cat is called a kitten.小猫叫 kitten。When a cat makes a soft sound because it's happy, it purrs. When it makes a loud sound, it meows.猫表示惬意时会柔声地叫,用 purr,大叫用 meow。