求翻译：狗，亦称“犬”，系由早期人类从灰狼驯化而来，驯养时间在4万年前至1.5万年前，是人类最早驯化的动物，通常被称为“人类最忠实的朋友”是什么意思？

Dogs, also known as "dog", by the early humans domesticated from gray wolves come, the time domesticated 40,000 years ago to 1.5 million years ago, is humanity's earliest domesticated animals, often called "man's best friend."

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The dog, also called “the dog”, was comes by the early humanity from the gray wolf domestication, to tame the time in 40,000 years ago to 15,000 ago, is animal which the humanity domesticated most early, usually is called “the human most faithful friends”

The dog, also known as "dogs", wolves domesticated by early humans came from, domesticated 15,000 to 40,000 years ago years ago, which is the earliest domestication of animals, commonly known as "man's best friend"

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