Definition

Examples

• 他的臼齿有一颗蛀了，需要补牙。
  Tā de jiù chǐ yǒu yì kē zhù le, xūyào bǔ yá.
  One of his molars has a cavity and needs to be filled.
• 小孩的臼齿通常在六岁左右开始长出。
  Xiǎohái de jiù chǐ tōngcháng zài liù suì zuǒyòu kāishǐ zhǎng chū.
  Children's molars usually start to erupt around age six.
• 这颗臼齿已经松动了，医生建议拔掉。
  Zhè kē jiù chǐ yǐjīng sōngdòng le, yīshēng jiànyì bá diào.
  This molar is already loose; the doctor recommends pulling it out.