sphenacodontidae楔: wedge peg齿: tooth龙: dragon a huge extinct reptil ...科: a branch of academic or voca ...楔齿龙: sphenacodon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:楔齿龙科，即可在微信中查询翻译
