单词速记:名词“保证” guarantee 美 /ˌɡærənˈti/ n. 保证,担保 搭配: money-back guarantee:退款保证 例句: The product comes with a 30-day money-back guarantee. 该产品附带有30天的退款保证。 pledge 美 /plɛdʒ/ n. 保证,誓约 搭配: solemn pledge:庄严承诺 例句: The company made a pledge to reduce its carbon emissions by 50%. 该公司承诺将减少50%的碳排放量。 commitment 美 /kəˈmɪtmənt/ n. 承诺,保证 搭配: lifelong commitment:终身承诺 例句: Their marriage is based on love and commitment to each other. 他们的婚姻建立在彼此之间的爱和承诺上。 assurance 美 /əˈʃʊrəns/ n. 保证,担保 搭配: assurance of quality:质量保证 例句: The company provides an assurance of product quality and customer satisfaction. 该公司提供产品质量保证和客户满意度保证。