1. The days are long and the nights are short.
    因为此时白天长而夜晚短，

2. The days are short and the nights are long.
    因为此时白天短而夜晚长，

3. These huge stone blocks weigh an average of two and a half tons each, as much as a small car.
    这些巨大的石块平均每块重２吨半，像一辆小型轿车那样重，

4. The surface of his pyramid used to shine with smooth white limestone, and its top came to a sharp point.
    以前，大金字塔表面光滑的白石灰石非常耀眼，塔的顶端很尖。

5. There are seven days in a week.
    一星期有七天，

6. The summer days are long.
    夏季日长，

7. The days are warm and sunny.
    每天都暖融融的，充满阳光，

8. The library is always quiet even on very busy days.
    图书馆里总是安安静静的，即使在人很多的时候。

9. The design of its badge, a red cross on a white field, was obtained by reversing the colours of Switzerland.
    红十字会的旗帜，即白底上红色十字，是由瑞士国旗红白两面色互换而成。

10. The whole journey of the moon round the earth takes twenty-eight days.
    月亮绕地球旋转一周需要二十八天。