n.气球; 热气球; [建]球饰; vt:膨胀,涨大; 乘热气球飞行; 使激增。adj:气球状的; (货物等)分量轻而体积大的; (分期付款)最后一笔大数目的。vi:乘气球飞行; 膨胀; 激增。第三人称单数:balloons复数:balloons现在分词:ballooning过去式:ballooned过去分词:ballooned形近词:Balloongallootballotsgalloon。例句:1,The balloon rose up slowly into the air。气球缓缓升上天空。2,It could be simply a defensive move, but some thought it could be a trial balloon for something more intimate。当然,这很可能只是个防卫性举动,但有人认为,它也有可能是三方放出的一个探测气球,以试探有无可能开展进一步的合作。3,The balloon was invented before the plane.。热气球是在飞机发明之前发明的。