At about 12 weeks of age, the Doberman starts the teething phase of its life.
At about 12 weeks of age, the Doberman starts the teething phase of its life.
大约12周大的时候，杜宾犬开始一生中的换牙期。
At about 12 weeks of age, the Doberman starts the teething phase of its life.
大约12周大的时候，杜宾犬开始一生中的换牙期。