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1·Halley was aware that the AU was one of the most fundamental of all astronomical measurements.

哈雷知道，天文单位是所有天文学测量中最基本的。

2·Halley realised that Mercury was so far away that its parallax angle would be very difficult to determine.

哈雷意识到水星离地球如此之远，以至于很难确定它的视差角。

3·In November 1677, Halley observed a transit of the innermost planet, Mercury, from the desolate island of St Helena in the South Pacific.

1677年11月，哈雷在南太平洋荒凉的圣赫勒拿岛上观测到了水星（最靠近太阳的行星）的凌日现象。

4·As Venus was closer to the Earth, its parallax angle would be larger, and Halley worked out that by using Venus it would be possible to measure the Suns distance to 1 part in 500.

由于金星离地球更近，所以它的视差角会更大。哈雷计算出，利用金星可以测量出太阳与地球之间的距离，误差为五百分之一。

5·Nicholas here. May I talk to Halley, please?

喂？我是尼克拉斯。请哈雷来接电话好吗？

6·It's the most famous of all comets, comet Halley.

它是所有彗星中最有名的哈雷彗星。

7·1742 - English astronomer Edmond Halley died at age 85.

1742年的今天，英国天文学家艾蒙德·哈雷逝世，享年85岁。

8·Halley did not see it, for he had died some years before.

哈雷没有看到它，因为他几年前去世。

9·If the meteors originate in Comet Halley, why are they called the Orionids?

如果流星来源于哈雷彗星，那么为什么会叫猎户座流星群呢？

10·Halley felt certain enough to make a prediction of what would happen in the future.

哈雷认为某些足以使一个会发生什么事情对未来的预测。