名词
中文翻译：通常费用
同义词：
['common expense', 'average expense', 'ordinary expense']
例句：
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1.The usual expense of a trip to the beach is around $500.
去海滩的旅行通常费用是500美元左右。
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2. They usually spend their evenings watching TV and eating snacks.
他们通常花晚上的时间看电视和吃零食。
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3.This restaurant has a usual expense of $20 per person.
这家餐馆每人的常规费用是20美元。