动词
中文翻译：保证
同义词：
['insist', 'assure', 'guarantee', 'warrant']
例句：
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1. He promised to return the lost wallet to her.
他承诺会将丢失的钱包归还给她。
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2. The company's quality assurance department ensures that all products meet strict standards.
公司的质量保证部门确保所有产品都符合严格的标准。
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3. The agreement guarantees both parties will receive payment for their work.
该协议保证了双方将获得其工作的报酬。