这是为什麽狗始终都如此欢乐而猫总是会发出满足的咕噜声。

That's why the dog is so joyful and why the cat purrs.

youdao

这是为什麽狗始终都如此欢乐而猫总是会发出满足的咕噜声。

That's why the dog is so joyful and why the cat purrs.

youdao