balloon

柯林斯词典

1. N-COUNT A balloon is a small, thin, rubber bag that you blow air into so that it becomes larger and rounder or longer. Balloons are used as toys or decorations. 气球
She popped a balloon with her fork. 她用叉子把气球砰的一声戳爆了。
2. N-COUNT A balloon is a large, strong bag filled with gas or hot air, which can carry passengers in a container that hangs underneath it. 热气球
They are to attempt to be the first to circle the Earth non-stop by balloon. 他们将试图成为首批乘热气球不间断环球飞行的人。
3. V-I When something balloons, it increases rapidly in amount. (数量上) 猛增
The jail's female and minority populations have both ballooned in recent years. 该监狱的女性及少数民族犯人在近几年都猛增了。