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。

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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。

youdao

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。

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Within a period of maybe two hours, we were able to drive close to 100 people into a store that normally had notoriously little traffic on that day.

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Federigan of the cargo ship Delmas Nacala, nominated by the Philippines, for out-manoeuvring, over a period of three hours, pirates in two skiffs, 600 miles off the coast of Seychelles, in March 2010.

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In a period of a little less than two hours, this quiet assassin landed 10 striped bass, using a jig and an expertly-wielded five-foot spinning rod.

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