knuckle-tooth

基本解释

• 圆弧顶面齿

同根派生

英汉例句

• They refused to knuckle under to any pressure.
  他们拒不屈从任何压力。
• I was given gas when they pulled my tooth out.
  给我拔牙时用了一氧化二氮。
• Some of his jokes are a bit too near the knuckle for my taste.
  我觉得他有的笑话已近乎淫亵了。
• A film of mucus and bacteria on a tooth surface.
  齿菌斑牙齿表面一层粘液和细菌的膜
• This tooth is sensitive to cold.
  这颗牙对冷过敏。