单词：work_time 

名词

• 
  [1.n.work_time] (同义词:[work_time]  )
• 
  注释列句：a time period when you are required to work
• 上位词 -> [time_period]  [fundamental_quantity]  [measure]  [abstraction]  [entity] 
• 下位词 -> [hours]  [face_time]  [workweek]  [day]  [overtime]  [turnaround] 
  反义词 -> [time_off]