名词
中文翻译：要求证书
同义词：
['certificate of demand', 'certificate of demand', 'certificate for demand']
例句：
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1. The company issueda demand certificate to the supplier as part of its quality control process.
公司作为其质量控制流程的一部分，向供应商颁发了要求证书。
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2. The government demanded that all citizens be vaccinated against COVID-19.
政府要求所有公民接种COVID-19疫苗。
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3.The company required that all employees complete training before they could demand their wages.
公司要求所有员工在要求工资之前完成培训。