没有触感的回馈，你几乎无法不看着手指在触摸屏上输入。
Without tactile feedback, typing on a touch screen is nearly impossible without looking at your fingers.
看着我的手指，告诉我你觉得如何。
看着你的小手指，它的空与无限的空并无不同。
Look at your little finger, the emptiness of it is no different that the emptiness of infinity.
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