1. I will be back within an hour.
    我在一小时之内回来。

2. Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
    它们随船飞行一小时也难得见其扇动一下翅膀。

3. In that first glorious hour, the mighty Vasa, which was intended to rule the Baltic, sank with all flags flying----in the harbour of the birth.
    就这样，想要统治波罗的海的大型战舰"瓦萨"号，在它壮丽的起航时刻，带着全身飘扬的彩旗，沉没在了它诞生的港口。

4. If we could stay as vigorous as we are at twelve, it would take about 700 years for half of us to die, and another 700 for the survivors to be reduced by half again.
    假如我们能保持12岁时的旺盛生命力，那么我们当中的一半人过700年才会死去，剩下的一半人再过700年，才会又减少一半。

5. It took me over half an hour to get rid of him.
    我花了半个多小时才摆脱了他的纠缠。

6. It took the police nearly an hour to get the traffic on the move again.
    警察花了将近一个小时才使车辆又开起来。

7. It went direct from my local station and the journey lasted a mere hour and seventeen minutes.
    这是趟直达车，旅途总共才需1小时17分钟。

8. It suddenly dawned on me that this express was not roaring down the line at ninety miles an hour, but barely chugging along at thirty.
    我突然感到这趟快车并没以时速90英里的速度呼啸前进，而是卟哧卟哧地向前爬行，时速仅30英里。

9. If you are lucky enough to get a sleeper, you spend half the night staring at the small blue light in the ceiling,
    即使你走运弄到一个卧铺，夜间有一半时间你会盯着车顶那盏小蓝灯而睡不着觉；

10. In a long drop, they reach speeds of 60 miles an hour and more.
    在一个长长的跌落过程中，它们可以达到每小时60里甚至更快的速度。