名词
中文翻译：备用成本
同义词：
['stand-by charge', "stand-by expense例句：1. The construction company was required to pay the project's standby cost.（建筑公司被要求支付项目的备用成本。）"]
例句：
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1. The construction company was required to pay the project's standby cost.
建筑公司被要求支付项目的备用成本。
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2.The hotel has a standby charge of $50 per night for extra beds.
酒店对于额外的床收取每晚50美元的备用费用。
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3. The manufacturer agreed to cover the standby cost for the damaged equipment.
制造商同意承担损坏设备的备用成本。