punch card machine洞: hole; cavity卡: wedge; get stuck; be jammed机: machine; engine洞卡机纸板打孔器凿孔机: punch card machine卡机: card machine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:洞卡机，即可在微信中查询翻译
