As the increase of its work hours,it may produce more problems that we have to solve.working hours还是work hours?
问题描述：
As the increase of its work hours,it may produce more problems that we have to solve.
working hours还是work hours?
答
As its work hours increase, it may produce more problems that we have to solve.
With the increasing of its work hours, it may cause more problems that we have to solve.
Both of them are OK.
答
working
答
With the increase of its work hours,it may cause more problems that we have to solve.