The tusks are used for defense, and, like teeth, they may wear down or be broken off.

象牙用于防御；和牙齿一样，它们也会磨损，或者脱落。

youdao

The tusks are used for defense, and, like teeth, they may wear down or be broken off.

象牙用于防御；和牙齿一样，它们也会磨损，或者脱落。

youdao