periodontal齿: tooth周: circumference; periphery; ci ...的: 4次方是 The fourth power of 2 i ...齿周: tooth rim齿周病: paradentosis; parodontosis; periodontopathv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:齿周的,即可在微信中查询翻译