downtime
US
UK downtime n: uncountable (time when non-operational) (机器、厂房等的)
SC 停机时间，停止运行时间，停工期 tíng jī shí jiān ，tíng zhǐ yùn xíng shí jiān ，tíng gōng qī
TC 停機時間
TC 停機時間
One of the factory's machines broke down, resulting in several hours of downtime while the maintenance staff tried to fix it.
downtime n: uncountable (time to relax)
SC 工间休息时间 gōng jiān xiū xī shí jiān
I've had a lot of downtime this week, so I've been catching up on my favourite TV shows.
His job's so demanding these days that he hardly has any downtime at all.