名词
中文翻译：Unknown
同义词：
['necessities', 'conditions', 'demands', 'requirements']
例句：
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1. The company's new policy requires all employees to wear masks in the office.
公司的新政策要求所有员工在办公室时必须戴口罩。
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2. The project has several requirements that must be met before it can be completed.
该项目有多个要求，必须在完成前满足这些要求。
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3. To ensure safety, all equipment must meet certain requirements.
为确保安全，所有设备都必须满足一定的要求。