To mark the day, Beijing established its first hearing dog training center.
为了记录这一天,北京建立第一个助听犬培训中心。
The dog has a white mark on its head.
只狗的头上有一个白色记号。
When the dog turns to follow, mark the instant he turns.
当狗转过来关注你的时候,标记它转过来那一瞬间。
When the dog turns to follow, mark the instant he turns.
当狗转过来关注你的时候,标记它转过来那一瞬间。
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