动词
中文翻译：保证
同义词：
['insist', 'guarantee', 'warrant', 'ensure']
例句：
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1.The company guarantees the quality of its products.
该公司保证其产品的质量。
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2. He guaranteed that he would return the money to the bank.
他保证会将钱还给银行。
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3.The agreement guarantees both parties' rights and obligations.
该协议保障了双方的权利和义务。