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1、气球的英语：balloon，英 [b??lu?n] 美 [b??lu?n]。
2、有人在她背后弄爆了一个气球，把她吓了一跳。She jumped as someone popped a balloon behind her.
3、你再给气球充气，它就要爆了。That balloon will burst if you blow it up any more.
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