名词
中文翻译：小费
同义词：
['tip', 'change', 'coin']
例句：
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1. She gave him a $20 tip for the excellent service.
她因为出色的服务给了他20美元的小费。
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2. The waiter brought us a tray of food and left a $10 change on the table.
服务员给我们端来一托盘食物，桌上留下了10美元的零钱。
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3. He counted his change carefully before putting it in his pocket.
他在口袋里仔细数了数零钱才放进口袋。