狗和猫是最常见的宠物，也是我们人类最好的朋友了。

Dogs and cats are the most common pets, is our best friend of mankind.

youdao

狗和猫是最常见的宠物，也是我们人类最好的朋友了。

Dogs and cats are the most common pets, is our best friend of mankind.

youdao