cosmine layer齿: tooth质: nature; character; essence层: I storey; tier; stratum齿质: dentine; dentinum; ebur dentis; ivory齿质的: dental; dentinal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:齿质层，即可在微信中查询翻译
