I am purchasing this to clean my dogs teeth at home.
我购买这我在家里的狗的牙齿清洁。
Later the bones help to keep your dogs teeth clean and white, and promote healthy gums.
而且的胸骨可以你们的狗狗的牙干净和白，是一个好好的健康香口胶。
"We can rule out that the dogs simply distinguish between the pictures based on a simple cue, such as the sight of teeth," said study author Corsin Muller.
研究作者科辛·穆勒说：“我们可以排除狗只是根据简单的线索来区分图片，比如看到牙齿。”
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