prolong
延长
常用释义
英音[ prəˈlɒŋ ]
美音[ prəˈlɔːŋ ]
变形
第三人称单数:
prolongs
现在分词:
prolonging
过去式:
prolonged
过去分词:
prolonged
基本释义
- v. 拉长，拖长（感觉或活动）；<罕>延长
考试频率
四级
考频：近五年出现2次
- v. 延续; 使持久
六级
考频：近五年出现4次
- v. 延续; 使持久
考研
考频：近六年出现1次
- vt. 延长; 拉长; 拖延
例句
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1·It seems commonly believed that companies are not motivated to prolong their products' lifespan.人们似乎普遍认为，公司没有动力去延长产品的寿命。
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2·In government laboratories and elsewhere, scientists are seeking a drug able to prolong life and youthful vigor.在政府实验室和其他地方，科学家们正在寻找一种能够延长寿命、让人保持年轻活力的药物。
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3·Extreme high-performance sports may lead to optimal cardiovascular performance, but they quite certainly do not prolong life.极限高强度运动可能会带来最佳的心血管功能，但这些运动肯定无法延长寿命。
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4·The operation could prolong his life by two or three years.这次手术可使他多活两三年。来源: 《牛津词典》
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5·Isoprinosine and muramyl dipeptide (MDP) could promote animal immune function, and prolong the sleeping time of mice and rabbits.异斯皮洛宁和鼠基二肽（MDP）可以促进动物的免疫功能，并延长小鼠和兔子的睡眠时间。
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6·Medical devices help to save and prolong life.医疗装置有助于挽救生命并延长生命。
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7·Time will prolong time, and life will serve life.时间将延长时间的存在，生活也将服务于生活。
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8·The deep cuts will only prolong Greece’s recession.这种开支大幅削减只会延长希腊的衰退。
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9·The deep cuts will only prolong Greece's recession.这种开支大幅削减只会延长希腊的衰退。
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10·That would prolong the crisis to the detriment of all.如此一来将会延长危机对所有成员国的损害。
同根词
词根：
prolong
prolonged
adj
延长的；拖延的；持续很久的
prolongation
n
延伸；延长部分；[经] 延期
词语辨析
extend/lengthen/prolong.导航词义：延长
extend:v. 延伸，延长.多指在空间、时间、面积等方面延长或扩展。
Our summer vacation extended into September.
我们的暑假延至9月。
He wanted to extend his garden.
他想要扩建花园。
My farm extends as far as the river.
我的农场一直延伸到河边。
lengthen:v. （使）延长，（使）加长.指在长度或时间上拉长或延长。
His trousers were lengthened.
他的裤子放长了。
Nights are lengthening with the coming of winter.
随着冬天的来临，夜晚渐渐变长了。
To save time is to lengthen life.
节省时间就是延长生命。
prolong:v. 延长，拖延.通常指时间上的延长，含超过正常限度之意。
He tried hard to prolong his mother's life.
他尽一切努力来延长母亲的生命。
The treaty has been prolonged for another 5 years.
这个条约又延长了5年。