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/klɒk/
informal (UK also clock on)
to record the time you arrive at work on a special machine
(在专门的机器上)记录上班时间,打上班卡
What time did you clock in this morning?
今天早上你几点打的卡?
Clocking-in time is 9.00 a.m.
打卡时间是上午9点。
clock out
(UK also clock off)
to leave work, especially by recording the time you leave on a special machine
(尤指在专门的机器上)记录下班时间,打卡下班