I say voluntarily since your offer is not to overtime hours.

我所指的主动,是因该您的协助是么有加班费的.

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Overtime hours and the length of the average workweek also have increased.

加班时数和平均每周工作时数也有增加.

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Sophia : I've also heard of some companies that let employees exchange overtime hours for vacation hours.

Sophia: 我也听过有些公司让员工们以加班时数来换取休假时数.

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What is the average number of overtime hours worked per worker each week?

工人每星期平均加班共多少小时?

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