contact jaw

基本解释

The last one in the lower jaw hurts when coming in contact with hot or cold things .
下边最后一颗牙遇冷热食物时疼。
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Mouth: Disagreement also shows up in compressed or pursed lips, clenched jaw muscles, or a head turned slightly away, so eye contact becomes sidelong.
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Typically, someone who is in agreement with you will smile and nod as you speak. (Disagreement shows up in compressed or pursed lips, clenched jaw muscles, or a head turned slightly away, so eye contact becomes sidelong.) But smiles are often used as a polite response and to cover up other emotions.
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