它们进化到能够识别出几种基本的味道，以便快速辨别毒素，而毒素在自然界中通常是很苦或很酸的。
They evolved to recognise only a few basic tastes in order to quickly identify toxins, which in nature are often quite bitter or acidly sour.
它们可以辨别身边的物体，识别人。
They can identify objects around them and distinguish people.
传统的物像识别系统在辨别数字图形中的一个特定物体时，通常是从寻找该物体的显著部件开始的。
A conventional object recognition system, when trying to discern a particular type of object in a digital image, will generally begin by looking for the object's salient features.
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