Definition

Examples

• 他疼得咬紧了牙关。
  Tā téng de yǎo jǐn le yá guān.
  He clenched his jaw from the pain.
• 医生检查了他的牙关，说没问题。
  Yīshēng jiǎnchá le tā de yá guān, shuō méi wèntí.
  The doctor checked his jaw and said there was no problem.
• 紧张的时候，他总是不自觉地咬紧牙关。
  Jǐnzhāng de shíhou, tā zǒngshì bú zìjué de yǎo jǐn yá guān.
  When nervous, he unconsciously clenches his jaw.