基本解释n.颚骨同根派生 英汉例句用作名词 (n.)And then his face was smooth, with a receding jaw.而且他的面孔光润，颚骨下陷。Ameloblastoma of the jaw is not a rare tumor, but a huge ameloblastoma is relatively uncommon.摘要颚骨的造釉细胞瘤并非很罕见的肿瘤，但巨大的造釉细胞瘤就很少见。