短语词组短语lateral incisor 侧切牙mandibular incisor 下颌切牙;下颌恒切牙impacted incisor 阻生切牙upper incisor 上颌切牙;上中切牙点valve incisor 瓣膜切开刀permanent incisor 恒切牙literal incisor 侧门齿;侧门齿英语Rat incisor 大鼠切牙incisor pulps 切牙牙髓 返回 incisor