名词
中文翻译：Unknown
同义词：
['vacancy', 'surplus', 'unused amount']
例句：
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1. The company has several vacancies for new hires.
该公司有多个空缺职位等待新员工。
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2. The budget is over by a large surplus.
预算超出了大量剩余金额。
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3. The restaurant had an unused amount of leftover food.
餐厅有未使用的剩余食物。