This design is more complex than the other two options since the system will have to track two time intervals.

该设计比其它两个选项更复杂，因为系统将不得不跟踪两个时间区间。

youdao

This design is more complex than the other two options since the system will have to track two time intervals.

该设计比其它两个选项更复杂，因为系统将不得不跟踪两个时间区间。

youdao