Many thousand years ago people learned how to domesticate animals.
数千年以前人们就学会了饲养动物。
Thousandss of years ago people had learned how to domesticate animals.
几千年以前人们就学会了饲养动物。
As people began to domesticate animals, they trained them to pull the litters and sledges.
当人们开始驯服动物时，他们训练它们拖担架和拉雪橇。
People domesticate animals, and this conduces to gentle and fragrant atmosphere for family.
人对动物的驯饲蓄养关系，使家庭增添无限温馨的氛围。
For example, when we domesticate animals, especially a companion animal like a dog, we are placing new demands upon it.
例如，当我们驯养动物时，特别是像狗这样的宠物，我们对它会有新的要求。
The relationship became closer when people began to domesticate animals, starting with the dog about 14,000 years ago.
一万四千年前，人类从狗开始逐渐驯化动物，由此拉进了人与动物的关系。
The relationship became closer when people began to domesticate animals, starting with the dog about 14,000 years ago.
一万四千年前，人类从狗开始逐渐驯化动物，由此拉进了人与动物的关系。
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