The domestic dog is generally loyal , courageous , intelligent , and adaptable.

一般说来，家养的狗都忠诚、勇敢、聪明、适应力强。（形容词，作表语）

youdao

That of a domestic dog. Like a loyal dog, even when the Guru ridicules, irritates or ignores one, one never responds with anger.

应如家犬，即使上师讥评、激怒或忽视自己，永不回以瞋心。

youdao

Many scientists agree that the domestic dog displays more morphological variation than any other known species, thanks to selective breeding by humans.

许多科学家都认为，国内的狗更显示形态比任何其他已知的物种变异，人类有选择育种的感谢。

youdao

Dr O'Donoghue says that these 19th Century wildcats show the size and power of this species - saying that they were as different from a domestic cat as a wolf from a dog.

BBC: When is a wildcat really a wildcat?

Meanwhile the domestic cat population has risen steadily, overtaking dog numbers in 1993 to stand now at about 8m, twice as many as there were in 1965.

ECONOMIST: Cats and dogs fight it out for prime pet position