名词
中文翻译：Unknown
同义词：
['coin-operated machine', 'coin-operatedvending machine']
例句：
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1.The tipping machine at the coffee shopis always busy with customers.
咖啡店的投币机总是顾客络绎不绝。
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2.The kids love to play with the tipping machines in the park.
孩子们喜欢在公园里玩投币游戏机。
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3. Thetipping machine has been a popular attractionfor tourists visiting the city.
投币机一直是游客参观这座城市时的一个热门景点。