amplify
单词辨析：
指放大声音等，尤指音乐声。
Can you amplify the signal?
你能把信号放大吗？
He amplified the sound through the musical instrument.
他通过这种乐器把声音扩大了。
指放大尺寸、面积、容量等。
enlarge a farm/hotel/photo
扩大农场/扩建酒店/放大相片
An effective way to enlarge your vocabulary is to read newspapers.
扩大词汇量的一个有效办法就是看报纸。
强调向外扩张。
expand metal/territory
使金属膨胀/扩展领土
The city's population expanded rapidly in the 1970s.
20世纪70年代，该城市的人口迅速增加。
The ancient city walls were demolished and the urban area was expanded.
古城墙被拆掉，城区被扩大了。
指增加数目或数量。
The number of female students has increased.
女学生的人数增加了。
They had to increase their investment.
他们只好增加投资。
We must increase industrial production.
我们必须增加工业生产。
相关例句：
Her anxiety about the world was amplifying her personal fears about her future.
她对世界的忧虑加剧了她对自己未来的恐惧。
By turning this knob to the right you can amplify the sound from this radio.
把这个旋扭向右转你就可以增大收音机的音量。
A photomultiplier can amplify the signal to detectable levels.
光电倍增管可将此讯号放大到可侦测的程度。
This will amplify the impact of our activities and our resources.
这将扩大我们各项活动和资源的影响。
A tube or a transistor can amplify an incoming signal.
电子管和晶体管能放大输入的信号。
We must ask you to amplify your statement.
我们得请你对你的说法作进一步的表示。