名词
中文翻译：Unknown
同义词：
['surety', 'assurance', 'guarantee', 'warrant']
例句：
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1. The company guarantees the quality of its products.
公司对其产品的质量提供保证。
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2. He guaranteed that he would finish the project on time.
他保证他会按时完成这个项目。
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3. The government's guarantee of unemployment benefits is a major concern for many families.
政府的失业保障是许多家庭的主要担忧。