第四小时：2。
For example, is it better to study for 4 hours straight or to study for 1 hour a day for 4 days in a row?
例如，是连续学习4个小时好，还是连续4天每天学习1个小时好？
After making a short test flight at 4:15 a.m., Bleriot set off half an hour later.
布莱·里奥凌晨4点15分作了一次短距离试飞，半小时后便正式出发了。
In the 2nd set of the match, Djokovic converted 4 of 6 break points while being broken only once to wrap up the match in just 1 hour 24 minutes.
在今日剩余比赛中，德约科维奇成功化解了6个破发点中的4个，而仅被对方破发一次，以1个小时24分钟迅速结束比赛。
Just five minutes later, the U.S. National hurricane Center (NHC) classified Celia as a Category 4 hurricane with sustained winds of 215 kilometers per hour (135 miles per hour).
五分钟后，美国国家飓风中心(NHC)将西莉亚归类为伴随每小时215千米(每小时135英里)持续风力的4级飓风。
At 4-4, Berdych seized control of the set by firing down 137, 133 and 138 miles per hour serves that gave Ferrer little chance of returning them.
在4 - 4平时，伯蒂奇在自己的发球局中发出了每小时137、133和138英里的发球，没有给费雷尔任何回球的机会，并因此控制着比赛。
Norma passed at 4:38 PM, exactly one hour later.
诺尔玛在下午4点38分离开人世，正好是一小时之后。
Norma died at 4:38 pm, exactly one hour later.
诺尔玛在下午4点38分离开人世，正好是一小时之后。
They go to social networking sites 5 days per week and check in 4 times a day for a total of an hour per day.
他们每周会访问5次社交网络，每天登录4次，总计在线时间为一个小时。
Every hour, the hour hand moves from one number to the next (in this case, it is moving from 3 to 4) which represents 30 degrees.
时针每小时从一个数字走到下一个数字(此例中为从3点到4点)，也就是30度。
The iron-sulphate system at Lampoldshausen, meanwhile, is capable of treating 4, 500 litres of waste water in an hour or two.
同时，Lampoldshausen的硫酸铁系统能够在一个或者两个小时内处理4,500升废水。
Let’s start with towns of Chukotka and visit Magadan that has the 4 hour time difference with Moscow.
让我们从楚科塔的城镇开始看起，然后去与莫斯科有四个小时时差的马加丹州。
In those regions, sky-watchers are advised to venture out away from bright city lights between 2 a.m. and 4 a.m. on the 17th, when they should see 30 to 50 meteors an hour.
在那些地区，天文观测者们可以尝试在17号凌晨两点到四点左右避开明亮的城市灯光观察天空，那时他们或能在一小时内看到30到50颗流星。
Oshinsky's tests on rats left a 4-6 hour gap between giving them the alcohol and giving them the cure as this allowed time for the headaches to develop.
Oshinsky的大鼠试验中，给大鼠使用酒精4 - 6小时后，等老鼠头痛了才给它们服用治疗药物。
Both planes were going to take off on July 25th, but Latham failed to get up early enough, After making a short test flight at 4, 15 a.m., Bleriot set off half an hour later.
两天飞机都打算在7月25日起飞，但莱瑟姆那天起床晚了。布莱·里奥凌晨4点15分作了一次短距离试飞，半小时后便正式出发了。
And last November, when I decided to participate in NaNoWriMo, I decided to get up at 4 a.m. to write for at least an hour a day.
去年11月份的时候，我参加了NaNoWriMo(译者注：这是美国的一个写作活动，参加者要在11月份期间写出一本多于五万字的小说)，因此我得每天早晨4：00起床每天坚持写作至少一小时。
Figure 4: jmap output an hour after application startup, showing over 25 million instances of the CelleData class.
图4：程序执行1小时后jmap的输出结果，显示超过2千5百万个CelleData类实例。
earnings - $xxx+4/hour on commercial projects
在商业项目中可获得的报酬：$xxx+4/小时
Comparing these times to those of the iPhone 4, the iPhone 4s offers an extra hour of talk time on the 3g network, the same amount of talk time on the 2g network, and 100 hours less standby time.
相比于iPhone4,4s的3g网络通话时间要多出一小时，而2g的与之持平，待机时间缩水100小时。
But most of the time I work 4 or 5 hour days.
但是，大多数时候我每天工作4或5个小时。
The river, which she swam last year in a 4-mile affair, is a pretty setting _ and those vistas will help keep her entertained during the three-hour swim.
这条河，她游去年4英里的事，是一个相当设置_和前景将有助于使她在娱乐三个小时的游泳。
The price of wind power has fallen from $2 per kilowatt hour in the 1970s to 5-8 cents now, compared with 2-4 cents for coal-fired power.
风能电的价格也从1970年代的每瓦特2美元降至如今的5-8美分，而煤电也不过2-4美分。
It was only one short hour from then till now when she again 4 trod up those steps, but it seemed she had lived a lifetime in-between.
从那时到现在再次踏上那些台阶，只不过相隔短短的一小时，但对于珀尔来说，却像过去了一辈子。
Now, appointments are scheduled to the half-hour. CET-4, 2002.12.
现在，任何预约服务只需提前半个小时就行。
Go through 4-6 weeks of several two hour long teleconferences a week.
经历4 - 6个星期，每个星期要有几次两小时成的电话会议。
The birds traveled up to 4, 200 miles (6, 760 kilometers) at an average speed of 60 miles (97 kilometers) an hour.
它们以平均每小时60英里(97千米)的速度完成了长达4200英里(6760千米)的旅程。
You probably know Tim Ferris, author of “The 4 Hour Work Week” right?
我想你们应该认识TimFerris，《每周工作四小时》的作者。
You probably know Tim Ferris, author of "The 4 Hour Work Week" right?
我想你们应该认识TimFerris，《每周工作四小时》的作者。
You probably know Tim Ferris, author of "The 4 Hour Work Week" right?
我想你们应该认识TimFerris，《每周工作四小时》的作者。
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