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单词列表：
1. Wireless
/ˈwaɪə.ləs/ 无线的
2. Charge
(a) [Tn] put a charge1(7a) into (sth) 给（某物）充电: charge a battery 给蓄电池充电
charger 充电器
3. Built-in
内置的
4. Electromagnetic
/ ɪˏlektrəumægˈnetɪk; ɪˋlɛktromæɡˋnɛtɪk/ adj (physics 物) having both electrical and magnetic properties 电磁的: electromagnetic waves, eg X-rays, radio-waves, light waves 电磁波（如X射线﹑ 无线电波﹑ 光波）.
5. Mat
/ mæt; mæt/ n
small piece of material placed under a hot dish, or a glass, vase, etc to protect the surface underneath （用以垫热碟﹑ 杯子﹑ 花瓶等的）小垫: a cork `table-mat 软木碗盘垫 * a beer mat 啤酒杯垫.
6. Coil
/ kɔɪl; kɔɪl/length of coated wire wound in a spiral to conduct an electric current 线圈.
7.Align
/ əˈlaɪn; əˋlaɪn/ v (b) [Tn] put (the parts of a machine) into the correct position in relation to each other 将（机器的部件）安装到相互间正确的位置上: align the wheels of a car 校准汽车的轮子.
8. Device
/ dɪˈvaɪs; dɪˋvaɪs/ n thing made or adapted for a special purpose （为某种用途而制作或改装的）装置, 器具: a device for measuring pressure 测压装置 *
9. Scroll
/ skrəul; skrol/ n
> scroll v 1 [I, Ipr, Ip] (of text on a computer screen) move gradually up or down （指计算机荧屏上的文本）逐渐上下移动. Scroll through Weibo/Wechat 刷微博/微信
10. Plug in
plug sth in connect (sth) to the electricity supply with a plug(2a) 用插头将（某物）与电源接通: Plug in the radio, please. 请把收音机的插头插上. * The recorder wasn't plugged in. 录音机的插头没插上.
11.Cumulative
/ ˈkjuːmjulətɪv; US -leɪtɪv; ˋkjumjəˏletɪv/ adj gradually increasing in amount, force, etc by one addition after another （数量﹑ 力量等）渐增的, 累积的: the cumulative effect of several illnesses 几种疾病日积月累造成的影响
