A mole rat's incisor teeth can move on their own, working together like chopsticks.

鼹鼠的门牙可以自行移动，像筷子一样共同工作。

All eight of our incisor teeth are located in the front part of our mouth.

我们所有的八颗门牙都位于口腔的前部。

Whenever we sink our teeth into something, such as an apple, we use our incisor teeth.

每当我们咬东西的时候，比如一个苹果，我们就用我们的门牙。