Well, there's only one nine-year-old in high school, and you still have your baby teeth.

高中唯一的9岁男孩，你的乳牙还没掉光。

After losing their baby teeth, plant-eating mammals like this antelope have one set of tall, adult teeth.

在失去乳牙后，像这只羚羊这样的食草哺乳动物长出了一套高大的成年牙齿。

" When you smile--" He had recovered his paternal attitude, perhaps because of Nicole's silent proximity, " I always think I'll see a gap where you've lost some baby teeth" .

“当你微笑的时候——”他恢复了父亲般的态度，也许是因为妮可默默地靠近，“我总觉得我会看到你掉了一些乳牙的缺口。”