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prolong

美国发音:[proʊ'lɔŋ]
英国发音:[prə'lɒŋ]

[v]
英语解释:to make something last longer
常见翻译:延长,使…延长,延续,持久,继续…下去

extend.
When you prolong something you make it last longer. When you prolong your stay you extend your stay; you continue your stay beyond a period. Medicines sometimes prolong life; that is, they lengthen the life of a person. The period for the repayment of a loan is prolonged if it is extended.