clock in
phrasal verbclock in/on  (British English) 
(North American English punch in)
- to record the time at which you arrive at work, especially by putting a card into a machine- Staff should clock in on arrival.
- I clock on at 8 a.m.
 
| 单词 | clock in | 
| 释义 | clock inphrasal verbclock in/on  (British English)  (North American English punch in) 
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