Teeth gnashing的用法和樣例：
例句
- Surano says the strain of posing for the painting could have triggered an attack of teeth grinding.
蘇然諾認為為了作畫(huà)而保持姿勢不變可能引起了磨牙癥的發(fā)作。 - Bruxism is a disorder characterized by grinding and clenching of the teeth, companied with fasciculation of masticatory muscles in nonfunctional status.
磨牙癥是在非功能狀態(tài)下咀嚼肌發(fā)生自發(fā)性收縮，使上下牙彼此磨動(dòng)或緊咬的現象。
