Dogs live for approval3, so a well-trained dog is a happy dog.

狗狗渴望受人认同，所以训练有素的狗就是快乐的狗。

youdao

Dogs live for approval3, so a well-trained dog is a happy dog.

狗狗渴望受人认同，所以训练有素的狗就是快乐的狗。

youdao