天晴小卷XJ
签到sign in英:[saɪn ɪn]美:[saɪn ɪn]词典:register one's attendance at a meeting or at an officesign in例句:实现了实验室的电子签到，同时简化和规范了指导教师的各项管理工作。It realize students sign in by electron and it predigest the teachers work.
木木兮123
打卡或者签到：Sign in或者check inSign in。是英文中的签到意思如果你表达的是连续签到的意思，可以用英文如下表达：keep sign in last for 30 days in ......
