所谓的“触感回馈”功能可以发出一次小小的震动，告诉用户该图标已被激活，这样一来用户就不必一直盯着屏幕，以确保已经选中了某个图标。
So-called haptic feedback allows the user to sense, by way of a small vibration, that an icon has been activated -- avoiding the distraction of looking away to make sure a selection has been made.
这两种方法有各自的缺点，很多触摸屏都没有触感反馈，这样用户必须要抬头看电视屏幕才知道刚才的触摸动作是否是正确的。
Each of these approaches has drawbacks: Most touch screens do not provide tactile feedback, so the user is forced to look away from his TV to actuate a touch screen control.
这两种方法有各自的缺点，很多触摸屏都没有触感反馈，这样用户必须要抬头看电视屏幕才知道刚才的触摸动作是否是正确的。
Each of these approaches has drawbacks: Most touch screens do not provide tactile feedback, so the user is forced to look away from his TV to actuate a touch screen control.
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