6個月大的狗狗就相當於人類7歲的小孩，等到狗狗長了三年以後，中小型犬的

6個月大的狗狗就相當於人類7歲的小孩，等到狗狗長了三年以後，中小型犬的年齡是：1自然年=5歲狗齡，大型犬的年齡是：1自然年=6~7狗齡

結果 (英文) 1:

6 months big dog is equivalent to 7-year-old human child, the dog until after a long three years, small and medium sized dogs age: 1 year = 5-year-old natural-old dog, large dogs age is: 1 calendar year = 6 to 7 dogs age

結果 (英文) 2:

Six-month-old dog is equivalent to a human 7-year-old child, until the dog grows up to three years later, the age of small and medium-sized dogs is: 1 natural age , 5 years old dog age, the age of large dogs is: 1 natural age , 6 to 7 dog age

結果 (英文) 3:

Six month old dogs are equivalent to seven-year-old human children. After three years of dog growth, the age of small and medium-sized dogs is: 1 natural year = 5-year-old dog age, and that of large dogs is: 1 natural year = 6-7-year-old dog age