名词
中文翻译：Unknown
同义词：
['mandatory', 'compulsory', 'essential', 'indispensable']
例句：
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1. The company's policy is to provide mustakone services to all employees.
公司的政策是向所有员工提供强制性服务。
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2. The government has mandated that all citizens must take the vaccine.
政府已规定所有公民都必须接种疫苗。
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3. The essential oils are known for their healing properties.
这些精油因其治疗性质而闻名。