One and a half hours are allowed for the exam.
考试时间为一个半小时。
Four and a half hours of discussion took us up to midnight.
我们讨论了四个半小时，一直讨论到午夜。
In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.
1981年，美国儿童平均每周花在家务上的时间略少于两个半小时；到1997年，这个时间达到近6个小时。
The clock strikes the hours but not the half hours.
这个钟是正点打点报时而不是半小时打点报时。
When he comes back two and a half hours later, they're still staying in the same place, continuing the same conversation on the same topic.
当他两个半小时后回来时，他们还在同一个地方，继续就同一个话题进行着同样的谈话。
I spent only one and a half hours.
我这么做只花了一个半小时。
Yunbo: Rumei, our flight leaves in two and a half hours.
云波：如梅，再过两个半小时我们的航班就要起飞了。
This afternoon dad played tennis for one and a half hours.
今天下午爸爸打了一个半小时的网球。
The boss asked him to explain why he was two and a half hours late.
老板要他解释一下为什么迟到两个半小时。
The historical drama eventually clocked in at three and a half hours.
这部历史剧最终的时长达三个半小时。
Mr Lee spends about one-and-a-half hours a day updating his own microblog.
李先生每天用一个半小时左右的时间来更新他的微博。
The two candidates debated for one and a half hours on nationwide television.
两个候选人在全国(性的)电视上辩论一个半小时。
On April 28, I gave four and a half hours of videotaped testimony in another Whitewater trial.
4月28日，在白水事件中的又一次审判中我提供了四个半小时的录像证词。
During eight hours of sleep, people dream for a total of one and half hours on the average.
在睡觉的八小时，每个人平均做梦的总时间为一个半小时。
Mount Snow, only two-and-a-half hours by car from Boston, has seen a jump in drive-up business.
山雪（Mount Snow），离波士顿仅两个半小时车程，已经看到驾车来滑雪的人增多。
Two and a half hours later, when the concert was over, people were crying and hugging one another.
两个半小时后演唱会结束了，在场的人彼此相拥而泣。
Tracy and Steven had been up for two and a half hours, preparing our breakfasts and tidying the train.
特莱丝和斯蒂文已经起床两个半小时了，正为我们准备早餐和打扫卫生。
Normal people need eight to eight-and-a-half hours of sleep.These people sleep five and a half to six.
一般人需要八到八个半小时的睡眠，而这些人只需要睡五个半到六个小时。
Normal people need eight to eight-and-a-half hours of sleep. These people sleep five and a half to six.
一般人需要八到八个半小时的睡眠，而这些人只需要睡五个半到六个小时。
The American Time Use Survey found that employed people work an average of seven and a half hours a day.
美国人时间使用调查结果发现受雇佣者每天工作的平均时间为7.5小时。
It takes the space station one and a half hours to fly around the planet, making for 16 complete laps a day.
空间站环绕地球一周需要1个半小时，每天可以转16周。
American children also have one of the shortest school days, six-and-a-half hours, adding up to 32 hours a week.
美国小孩每天的上课时间也是最短的，6.5小时，每周总计32小时。
Even though it's just one and a half hours away by bus, Rui only came home to see his family a few times a year.
他一年只能回家一两次，尽管南京离他家只有一个半小时路程。
I finished the testimony at about six-thirty, three and a half hours before I was scheduled to address the nation.
约6点半，我的作证结束了。按计划，三个半小时后我就得向全国发表电视讲话。
Internet usage is up to four-and-a-half hours on the Web each week, compared to three-and-a-half hours a year ago.
一年前，万维网的使用率为每周3.5小时，而现在达到了4.5小时。
Internet usage is up to four-and-a-half hours on the Web each week, compared to three-and-a-half hours a year ago.
一年前，万维网的使用率为每周3.5小时，而现在达到了4.5小时。
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