柯林斯词典buckle up (buckling,buckled,buckles) 1. PHRASAL VERB When you buckle up in a car or aeroplane, you fasten your seat belt. 系上安全带[非正式] A sign just ahead of me said, "Buckle Up. It's the Law in Illinois." 在我前面的一个告示牌上写着“系上安全带，这是伊利诺伊州的法律”。 返回 buckle up