1. We had been in the hat shop for half an hour and my wife was still in front of the mirror.
    我们在这家帽店已经呆了半个小时了，而我的妻子仍在镜子面前。

2. We got there after half an hour´s walk.
    走了半个小时便到达那里。

3. When the moon is like this, we call it a quarter moon.
    这时的月亮我们称之为半月。

4. We see the change from new moon to quarter to full and back to new moon every twenty-eight days.
    我们每二十八天就能看到从新月到半月、到满月再回到新月的变化过程。

5. They waited for about an hour.
    他们等了大约一个小时.

6. The car runs at approximately 80 miles per hour.
    这辆车每小时大概跑八十英里。

7. The graph shows the fluctuation of the temperature at each hour.
    曲线图显示了每小时温度的变化。

8. The graph shows the fluctuation of the temperature at each hour.
    曲线图显示了每小时温度的变化。

9. There are 60 minutes in an hour.
    一小时有六十分钟.

10. The vicar preached to the congregation for half an hour.
    那位教区牧师向会众讲道半个小时.