n.上顎；下頜骨；（昆蟲等的）大顎
The lower mandible could not move backward. 下頜不能再向后運動。
The article reports 20 cases of recurrent ameloblastoma of the mandible. 本文報告20例下頜骨復發(fā)性造釉細胞瘤。
The patient has a radiolucent lesion below the molar teeth in the right mandible. 病人在右下頜的大臼齒，有一放射透過性的病變。
