Bush prefers painting animals — usually dogs — but sometimes paints himself.

但有时他也会画画自画像。

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The basic claim is that by chopping up animals (usually dogs or monkeys) surgeons can learn and experiment with techniques which will help them when they do experiments on people.

人们普遍认为解剖动物（通常是狗或猴子），能使外科医生熟悉器材与操作，帮助他们更好地为人做手术。

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All this takes money and energy but then top dogs usually have large quantities of both of those, too.

这些都需要耗费金钱和精力，但拥有权势的家伙们通常在这两方面都取之不竭。

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But those pets are usually dogs.

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My buddy Mikey and I would always break for supper, usually chili dogs, and drop a few quarters playing Spy Hunter in the Dream Machine.

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Instructors say owners can usually avoid them by taking their dogs for a walk before class.

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