或者把舌头放在上颚，上排门牙的后面。

Or place tongue on alveolar ridge, the area behind your top teeth.

youdao

我跌倒时门牙的珐琅质碰碎了。

I chipped the enamel on my front tooth when I fell over.

youdao

一个落了两颗门牙的男孩。

A boy with two front teeth missing.

youdao

For example, how much would you have to be paid to have one upper front tooth pulled out?

比如，给你多少钱,你才愿意拔掉自己的一颗门牙？

耶鲁公开课 - 公正课程节选