dummy deck虚拟: invented; fictitious卡片: card; fiche; tabulating card叠: pile up; repeat虚拟卡片阅读机: virtual card reader卡片叠: card deck; deck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:虚拟卡片叠，即可在微信中查询翻译
