蛀洞，因龋齿引起的牙内蛀洞区的英文

• cavity

• 蛀洞:    shothole; cavity; worm-hole
• 因:    follow; carry on
• 龋齿:    tooth decay; caries; dental ...
• 引起:    give rise to; lead to; set o ...
• 的:    4次方是 The fourth power of 2 i ...