As part of the study, the young men and women were asked how many hours of television or videos they watched daily.
VOA: special.2009.03.10
So, it could be that you're deciding, as a lawyer, how many hours you're going to spend on the job.
比方说你是个律师,你就要计划好为公司工作多长时间
How many hours do the students take classes usually?
学生们通常上几小时的课?
How many hours a day the pump needs to be operated depends on the season and how much water is needed for crops.
VOA: special.2009.08.17
How many hours do you study every day?
你每天要学习几个小时?
How many hours do you work a day?
你一天工作几个小时?
How many hours are you working?
你工作多少个小时?
How many people here on average-- from the beginning of the semester until now get on average more than eight hours of sleep a night?
这里平均有多少人-,从开学到现在,平均每晚睡超过八小时的?
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