balloon
n.气球;热气球
v.(突然)膨胀，涨大;乘热气球飞行
第三人称单数： balloons
复数： balloons
现在分词： ballooning
过去式： ballooned
过去分词： ballooned
We watched the balloon riding high above the fields.
我们看着气球高高地飘浮在田野上空。
That balloon\'s going to burst.
气球马上要爆了。
She jumped as someone popped a balloon behind her.
有人在她背后弄爆了一个气球，把她吓了一跳。
