名词
中文翻译：最低费用
同义词：
['minimum cost', 'minimum chargeable amount']
例句：
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1.The company's minimum charge for electricity is $5 per month.
该公司的电费最低收费是每月5美元。
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2.The car has a minimum charge of 30 miles per gallon.
这辆车每加仑最少能行驶30英里。
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3.The battery has a minimum charge of 2 hours before it can be recharged.
电池在充满电前最少需要充电2小时。