another two hours 为什么不说other two hours或the other two hours?

another two hours 为什么不说other two hours或the other two hours? two other hours,other two hours,tow hours two hours the meeting lasted two hours the trip is about two hours.划线about two hours Two hours' ///////// A two-hour 单项选择He worked( )two hours after school.A other B else C the the other two+another two+these two+the two two hours' 为什么不是hour's? A.two more hours B.another two hour C.two another hour D.mor Two hours later,the patient came to----------- 1.The meeting lasted two hours.