基本解释咬合同根派生 holding-on相关词英汉例句Dens evaginatus is a developmental anomaly that produces a tubercle on the occlusal surface of a tooth.齿外齿是一种牙齿发育的异常,在牙齿的咬合面上突起一个的结节,最常见于下颚小臼齿。holding-on更多例句