名词
中文翻译：投币装置
同义词：
['coin-operated device', 'coin-operated appliance']
例句：
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1. Therestaurant uses a tipping device to encourage customers to leave tips.
这家餐厅使用一种投币装置来鼓励顾客留下小费。
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2. The new coffee machine has a built-in tipping device that automatically adds sugar and milk.
这款新的咖啡机内置了一个自动加糖和牛奶的投币装置。
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3. The hotel provides a tipping device for guests to use during their stay.
酒店为客人提供一种投币装置，供他们在住宿期间使用。