pocket piece龙骨: a bird's sternum fossil frag ...穴: cave; cavern; grotto边: side; section纵: release; set free; let go材: timber下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:龙骨穴下部边纵材,即可在微信中查询翻译