●ˌclock ˈin/ˈon () (NAmEˌpunch ˈin) to record the time at which you arrive at work, especially by putting a card into a machine（尤指用机器）记录上班时间，上班打卡◆Staff should clock in on arrival.员工到达时须打卡。●ˌclock ˈout/ˈoff () (NAmEˌpunch ˈout) to record the time at which you leave work, especially by putting a card into a machine（尤指用机器）记录下班时间，下班打卡◆She clocks off at 5.15.她在 5 点 15 分打卡下班。●ˌclock ˈup sth () to reach a particular amount or number, especially one that is very large or high高达（某一数量）◆The company has clocked up nearly $400 million in losses.公司的亏损已高达近 4 亿元。◆clocking up record profits高达创纪录的利润