名词
中文翻译：空气球
同义词：
['balloon', 'helium balloon']
例句：
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1.The children were playing with airbells in the park.
孩子们在公园里用空气球玩耍。
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2. The balloon was released into the sky, floating high above the trees.
气球被放飞到空中，高高地飘浮在树木之上。
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3.The balloons were colorful and filled with helium gas.
这些气球色彩斑斓，充满氦气。