名词
中文翻译：无明确翻译
同义词：
['tip', 'gratuity例句：1. She gave him a $20 tip for the excellent service.（她因为他提供的优质服务而给了他20美元的小费。）2. The waiter gave her a $10 gratuity as a thank you for her generous tip.（服务员因为她慷慨的小费而给了她10美元的感谢金。）']
例句：
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1. She gave him a $20 tip for the excellent service.
她因为他提供的优质服务而给了他20美元的小费。
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2. The waiter gave her a $10 gratuity as a thank you for her generous tip.
服务员因为她慷慨的小费而给了她10美元的感谢金。
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3. He left a $50 tip on the table as a gesture of appreciation.
他留下了50美元的小费作为感激之情的表示。