keel rabbet龙骨: a bird's sternum fossil frag ...镶: inlay; set; inset; insert; m ...口: mouth镶口: rabbet镶口线: rabbet line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:龙骨镶口,即可在微信中查询翻译