It's not often that it's so clear that the phone is not really a phone per se, but a fully fledged computer that fits in your palm and just happens to have a phone built into it.
很明显，手机本身实际上并非手机，而是一台功能完备、手掌大小的计算机，只不过恰好内置了手机功能而已，这种情况还真不常见。
Light sensors are used to monitor where a user moves their hand on their palm and presses the screen on the phone accordingly.
光敏元件的作用是监测手机用户触摸手掌的位置来对手机屏幕进行相应操作。
Instead of swiping and tapping your finger across your phone, you simply do so across your palm.
不再需要在手机上滑动和点击，而是直接在你的手掌上。
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