In America, a regulator would presumablyneed to determine the period of commercial value: perhaps two hours for news ofan earthquake, 30 minutes for sports results.
在美国，监管人可能需要确定商业价值的时长是多少：也许地震相关新闻有两个小时，体育比赛的结果有30分钟。
Third, Hillary had billed Madison for a grand total of twenty-one hours of legal work at the Rose Law Firm over a two-year period.
再次，在两年的时间里，希拉里为罗斯律师事务所代表麦迪逊储贷银行处理法律事务总共只有21小时的律师工作时间。
There's also a Period which can be used to represent any period of time, like “two years, three months, seven days, four hours, fifty mintues”.
还有一个Period类来表示任意的时间周期，如“两年、3个月、7天、4小时、50分钟”等。
They were visited during February to May 2007 and samples were taken after a waiting period of two hours after cleaning and disinfection.
在2007年5月份到他们那里，并且在清洁和消毒后的两小时进行取样。
BTE button battery life, the qualified products should be in 200 hours or so, is calculated by using 12 hours a day, period of validity for about two weeks.
耳背式助听器使用纽扣式电池，合格的产品使用寿命应在200小时左右，按每日使用12小时计算，有效使用期限约为两周。
But a movie needs to display the story in the limited period of time, usually about two hours.
但是电影只能在有限的时间里述说故事，通常是两个小时。
A "happy hour 'is a short period of time, usually one, two, perhaps three hours in the late afternoon and weekdays when many bars have drinks and food that costs less than usual."
“减价饮料时间段”是一个很短的时间段，通常是在工作日下午的一个，两个小时，也许是三个小时，许多酒吧有饮料和食品的费用都比通常的低。
A "happy hour 'is a short period of time, usually one, two, perhaps three hours in the late afternoon and weekdays when many bars have drinks and food that costs less than usual."
“减价饮料时间段”是一个很短的时间段，通常是在工作日下午的一个，两个小时，也许是三个小时，许多酒吧有饮料和食品的费用都比通常的低。
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