uptime
noun /ˈʌptaɪm/
  /ˈʌptaɪm/
[uncountable]- the time during which a machine, especially a computer, is working opposite downtime
 
| 单词 | uptime | 
| 释义 | uptimenoun /ˈʌptaɪm/   /ˈʌptaɪm/ [uncountable]
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