double-colon rules冒号: colon规则: rule; regulation; ordination ...编号规则: classification and numbering regulations of files拨号规则: dialing rules区号规则: dialing rules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:冒号规则，即可在微信中查询翻译
