Cats don't bend their tongues to drink like dogs. Cats use less momentum and a more gentle action. They just skim, or barely touch, the surface of the water to drink it.

而猫不需要像狗一样弯曲舌头，它们通过较小的动量，采取更轻柔的行动：只是舔一下水的表面喝水。

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And so, he has put this chemistry to use in this robotic arm and they call it Fido, because often dogs are the creatures that have to go out and detect these things, and it's not a great job if you're a dog to be sent out to see whether there was an explosive and discover yes, there was, a little bit too late.

因为通常都是派狗去检查这些东西,这个不是个好工作，如果你是一只狗,被派去检查是否有爆炸物，然后你发现有,那就来不及了,所以用机器手检查化学物质。

麻省理工公开课 - 化学原理课程节选

Simon Tinley, the centre's general manager, said they had a variety of places the force could use to train the dogs.

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They've since planted a raspberry patch and apple and plum trees on their 10 acres, and have added two cabins, one of which they use as their master bedroom and the other "for grandchildren and bad dogs, " says Allen.

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