名词
中文翻译：训练气球
同义词：
['trainer', 'balloon training']
例句：
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1.The team used a training balloon to help them understand the basics of the game.
团队使用了一个训练气球来帮助他们理解比赛的基本规则。
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2. The balloon was filled with air and released into the sky, creating a beautiful sight.
这个气球被充入了空气，然后升入天空，形成了一道美丽的风景。
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3. The balloon was used as a teaching tool for children, helping them learn about gravity and motion.
这个气球被用作教学工具，帮助孩子们学习关于重力和运动的知识。