| 单词 | 磁卡 |
| 释义 | 〔card〕To sign in, as at a place of business, by use of a magnetic card.签到：如在商业场所用磁卡所进行的登记〔card〕To sign out, as from a place of business, by use of a magnetic card.签退：用磁卡登记姓名以示离开，如离开商业活动的场所时 |
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