猫脚印，【别名】汉荭鱼腥草、水药、狗脚血竭、白花地丁、石岩酸饺草、满山红、凤尾小贯众。
于是，狗开始顺着猫的脚印去追踪猫的去向。
最后，当狗走到树下时，猫的脚印没有了。狗找不到猫的痕迹，就绕着树走来走去。 。
At last, he came to the tree but he could not find any footprint. The dog could not trace thecat though he kept going round and round the tree.
模式识别的能力也可以在其它生物中被发现到：猫可以知道回家的路，狗能够识别主人的脚印，蜜蜂会发现它要采蜜的花。
The pattern recognition ability may also be found in other biological systems: the cat knows the way home, the dog recognizes his boss from the footsteps or the bee finds the delicious flower.
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