冬天到了。天气冷了。每天早晚,人们出来遛弯或锻炼,都增添了御寒的服装。有些人在遛弯的同时,还兼顾着遛狗——也或许,遛狗的同时顺便也遛一下自己。有些狗的身上,还让主人给套上了可体、漂亮的马甲,显得人模狗样的。然而,看到那些穿着衣服的狗时,却在想,它们真的需要如此穿着打扮么?据说狗是从灰狼驯化而来。虽然它与人类共同生活了上万年甚至几万年,但狼的某些特性与本色却难以改变,比如身体里的汗腺不是非常发达,不会像人一样通 Winter is here. The weather is cold. Every morning and evening, people come out to walk or exercise, have added a warm clothing. While walking around, some are also taking care of their dogs - and perhaps walking their dogs while walking the dogs. Some dogs, but also allow the owner to put on a decent, beautiful vest, it seems dog-like model. However, when looking at the dogs in their clothes, they wondered if they really needed to be dressed in this way. It is said that the dogs were domesticated from the wolves. Although it lives with humans for tens of thousands of years or even tens of thousands of years, some characteristics and qualities of wolves are hard to change. For example, sweat glands in the body are not very developed and will not be as human