书本
设备
笔记
话筒
device n. 装置；策略；图案；设备 ；花招；诡计 例句：Their proposal was only a device to confuse the opposition. 他们的提议只是迷惑反对派的一个花招。A remote control device was used to detonate the bomb. 用遥控装置引爆炸弹。
