Subtle lag will be hard to recognize, but more serious problems will become immediately apparent as the selection on-screen fails to match what your fingers are doing.

微小的延迟很难被察觉，但若是更严重的问题就会马上显现，因为屏幕上的被选项目会和你的手指操作不匹配。

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Around the size of a domestic cat, it creeps around the rainforests of Madagascar, drumming its fingers on tree trunks - up to 40 times a minute - listening for subtle variations in pitch.

指猴有家猫大小，爬行在马达加斯加的热带雨林附近，用手指在树干上发出击鼓声——高达每分钟40次——同时倾听音准的微妙变化。

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Touchscreens could be configured to detect subtle aspects of your interactions with your computer - the distances between your fingers, the speeds at which you tap and scroll.

触屏可以配置得发现你和你电脑之间微妙的互动——通过你手指之间的距离、你打字和滚动的速度。

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