柯林斯詞典long vacation 1. N the long period of holiday in the summer during which universities, law courts, etc, are closed (大學(xué)放假，法院休庭等的)長暑假 返回 long vacation劍橋詞典the three months in the summer when college and university students do not have classes （大學(xué)生的）暑期長假，暑假 返回 long vacation