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。
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。