这个办法是，我们应该在敌人的脖子上系上一个铃铛，猫走路时发出的叮当声，就会警告我们——猫要来了。
It is that we should fasten a bell round the neck of our enemy the cat, which will by its tinkling warn us of her approach.
看看北有熊怎样利用相撞增添块的压力去找猫物，嗅觉是这里最重要的感观，看看海豹怎样设陷阱对付敌人。
Witness how the polar bear uses pressure ridges between colliding ice packs to seek out prey, how smell isp primary sense and how seals set up decoys to out-wit their would-be assailant.
很久以前，一群老鼠聚在一起商量如何才能对付它们的共同敌人——猫。
Long ago, some mice had a meeting to consider what they could do to outwit their common enemy, the cat.
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