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amplify, enhance, enlarge,expand,magnify都含有一定的 扩大,提高 之意 amplify 放大,扩大,增强,指放大,增强 enhance 提高,增强,指等的增加,提高. enlarge 指体积,大小,范围,能力等方面的增加 expand 既可指数量上或体积上的增加,也可用来之前后左右上下任何方向的扩大,也指知识的增长,生意的扩大 magnify 指放大,扩大 1. Human knowledge has greatly expanded in the last 30 years which enables people to achieve more and live more comfortably.过去30年人类的知识已经有了很大的增长,这就使得人们能够取得更大的成就,生活也更舒适了. 2. Please amplify a radio signal.请放大无线电信号. 3. The republication of the poet s most recent works will certainly enhance his national reputation.这位诗人最新作品的再版毋庸置疑地会提高他在国内的声望. 4. People often use a loudspeaker to magnify the voice.人们常用扩音器来放大声音. 5. We must enlarge our views by reading.我们必须以读书来增长见识. 6.The boss is going to expand retail operations.老板正打算扩大零售业务. 7.Mother asked someone to enlarge the kitchen.妈妈找人来扩大了厨房. | 
