1. But by the time Julius Caesar became the ruler of the Roman Empire, the calendar had been very badly mixed up.
    到了恺撒大帝成为罗马帝国统治者的时候，历法已经变得混乱不堪。

2. When all were assembled, the ruler stepped forward and raised his right hand.
    众人到齐后，国王上前举起右手。

3. The autocrat was replaced by a ruler responsible to the people.
    那独裁者被一位对人民负责的统治者取代了。

4. The master was walking up and down the room with the iron ruler under his arm and a book in his hand.
    老师手里拿着一本书，胳膊下夹着铁戒尺，在教室里走过来走过去。

5. Then the ruler lifted his left hand.
    随后国王举起左手，

6. He is a potent ruler.
    他是一个强有力的统治者。

7. Dr. Hornsnagle, an American explorer, asked the ruler of Yap Yap whether free speech was allowed under his rule.
    美国探险家洪斯纳哥博士问汪汪国的国王，在他统治下是否允许言论自由。

8. Dr. Hornsnagle asked the ruler why only the four rich men blew trumpets.
    洪斯纳哥博士问国王，为什么只有四个富人吹喇叭。

9. Can you measure accurately with this ruler?
    用这把尺子能量得准吗?

10. Can I borrow your ruler?
    我可以借一下你的尺子吗?