气球的英文是什么

　　The world's first transatlantic balloon race ended in chaos last night

　　昨晚世界第一届跨大西洋热气球比赛在一片混乱中收场。

　　It wasn't a balloon — I'm certain of that.

　　那不是气球，这点我敢肯定。

　　Four of the nine starting balloons were still aloft the next day.

　　9个开幕气球第二天还有4个飘在空中。

　　In London, the use of the Tube has ballooned

　　在伦敦，坐地铁的人激增。