We watched the balloon riding high above the fields.

　　我們看著氣球高高地飄浮在田野上空。

　　That balloon's going to burst.

　　氣球馬上要爆了。

　　She jumped as someone popped a balloon behind her.

　　有人在她背后弄爆了一個(gè)氣球，把她嚇了一跳。

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

　　你再給氣球充氣，它就要爆了。

　　They decorated the room with flowers and balloons.

　　他們用花和氣球裝飾了房間。