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1·His wild-west origins mean that he has rattlesnake fangs, and unlike European vampires, he is powered by the sun.

他来自狂野的西部，这意味着他有响尾蛇般的毒牙，不像欧洲产的吸血鬼，他由太阳提供能量。

2·What do you mean 'moon and sun'?

你说的‘太阳和月亮’是什么意思？

3·But no, this doesn't mean that Earth's inclination has changed or that we are off our orbit or that the Sun has changed its position.

不过这并不意味着地球的偏角发生了变化，也不意味着我们偏离了轨道，更不意味着太阳挪地方了。

4·And then his third law was that if you take the orbital period of an ellipse, that is proportional to the third power of the mean distance to the Sun.

第三定律是，椭圆轨道的周期，和距太阳的平均，距离的，立方成比例。

5·You see here the six planets that were known at the time, and the mean distance to the Sun.

这是当时已知的，六个行星，以及于太阳的平均距离。

6·Perfect conditions mean that you aren't in water or sweating, two things that usually go hand in hand with the sun.

理想的条件意味着你不是在水里或出汗。 而这两个事情通常和阳光密切联系在一起。

7·It orbits its star every 4.7 days, in a moderately elliptical orbit at a mean distance of only 0.04 AU (one tenth of Mercury's distance from the sun).

它每4.7天环绕恒星一周，其轨道为一个适度的椭圆，平均距离仅0.04个天文单位(为水星距太阳的十分之一)。

8·Since the tale of the cave is an allegory, the question is what all these things mean. What do shadows, puppets, original things, and the sun stand for?

既然洞穴的故事是一个比喻，那么影子，木偶，真实事物和太阳都各自代表什么？

9·A cooler sun might mean a drop in global average temperatures of at most 0.3 degrees Celsius.

太阳温度的降低或许意味着全球平均气温降低0.3摄氏度。

10·Luckily, summer's long days and warm weather also mean a bounty of fresh vegetables and sweet, sun-ripened fruits are available.

幸运的是，夏日的长长白日和温暖的天气使得我们可以品尝到品种多样的新鲜蔬菜和香甜的、自然成熟的水果。