发布于：2025-07-05 23:08浏览量：150文/优校网
1.【解】颌骨;上颌;【动】下颌肢,小颚,下颚
1.either of a pair of bones that are fused at the midline and together form the upper jawbone in vertebrates
2.a mouthpart that is one of one or two pairs behind the mandibles of arthropods