气球的英语单词是：balloon

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;

vi.乘气球飞行;膨胀;激增

相关介绍

例句：

That balloon will burst if you blow it up any more.

你再给气球充气，它就要爆了。

They decorated the room with flowers and balloons.

他们用花和气球装饰了房间。

Goodness, what a big balloon!

啊，好大的气球呀！

The room was decked out in flowers and balloons.

屋子里装点着鲜花和气球。