amplify
词根词缀：
ample adj. 宽大的；充足的
amplifier n. 扩音器；放大器
ampl 大 + ifier 做…的人或物 → 扩音器；放大器
amplify v. 放大，扩大
ampl 大 + ify 使… → 放大，扩大
amplitude n. 广大，宽阔
ampl 大 + itude 状态 → 广大，宽阔
数据来源：新东方英语词汇速记大全
相关例句：
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。
The music was amplified with microphones
音乐声通过麦克风被放大。
The stimulated signals amplify themselves within the magnetic fields reducing the need for signal regeneration.
被刺激的信号放大自己在减少对信号再生的磁场之内需要。
If you constantly think and talk about your partner's flaws it can amplify your discontent.
如果你不停地考虑并谈论你伴侣的缺点，这会放大你的不满。
This landscape seemed to trap and amplify sounds
这种地貌好像可以笼住并放大声音。
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。