optional device是什么意思

2个回答

  • optional device

    可选的设备

    双语对照

    例句:

    1.

    As well as the standard arsenal of technical features-touch-screen,wi-fi,gps,bluetooth and built-in camera-the pre also has an optional charging pad,called the touchstone,which uses electromagnetic induction to charge thedevice wirelessly.

    这个手机拥有标准技术的特征触摸屏,无线上网,全球卫星定位系统,蓝牙和内置摄像头pre还有一个可供选择的充电设备,叫做触摸石,就是利用电磁感应原理无线为设备充电.