名词
中文翻译：气球
同义词：
['balloon', 'helium balloon例句：1. The children were playing with their air balloons in the park.（孩子们在公园里和他们的空气球玩耍。）']
例句：
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1. The children were playing with their air balloons in the park.
孩子们在公园里和他们的空气球玩耍。
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2.The balloon was filled with helium and released into the sky.
这个气球被氦气填充，然后升入天空。
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3.The balloon was a symbol of joy and happiness for many people.
这个气球是许多人快乐和幸福的象征。