1.balloon的读音:英[bəˈluːn],美[bəˈluːn]
2.n.气球; 热气球;
3.vi.(突然)膨胀,涨大; 乘热气球飞行;
4.adj.气球状的; (货物等)分量轻而体积大的;
5.v.涨大; 乘热气球飞行;
6.第三人称单数:balloons 复数:balloons 现在分词:ballooning 过去式:ballooned 过去分词:ballooned