− the narrator discusses the Earth's lamplighters
So then the seventh planet was the Earth.

The Earth is not just an ordinary planet! One can count, there 111 kings (not forgetting, to be sure, the Negro kings among them当然了,没有漏掉黑人国王), 7000 geographers, 900,000 businessmen, 7,500,000 tipplers, 311,000,000 conceited men−− that is to say, about 2,000,000,000 grown−ups(即是说,大约有20亿的大人).
To give you an idea of the size of the Earth, I will tell you that before the invention of electricity it was necessary to maintain, over the whole of the six continents, a veritable(adj. real, actual, authentic; substantial ) army of 462,511 lamplighters for the street lamps. (在发明电之前,在六大洲上,为了点亮路灯,需要一支为数462511的真正大军)
Seen from a slight(very small) distance, that would make a splendid spectacle.(从稍远的地方看过去,能给人一种壮丽辉煌的感觉) The movements of this army would be regulated (管制,控制)like those of the ballet in the opera.(这支大军的行动就像是歌剧院芭蕾舞的动作一样,那样有条不紊)
First would come the turn of the lamplighters of New Zealand and Australia.(首先出场的是新西兰和澳大利亚的点灯人)
Having set their lamps alight, these would go off to sleep. Next, the lamplighters of China and Siberia(西伯利亚) would enter for their steps in the dance, and then they too would be waved back into the wings(随后也藏到幕布后面去了). After that would come the turn of the lamplighters of Russia and the Indies; then those of Africa and Europe, then those of South America; then those of North America.
And never would they make a mistake in the order of their entry upon the stage. It would be magnificent. (他们从来也不会搞错他们上场的次序)
Only the man who was in charge of the single lamp at the North Pole, and his colleague who was responsible for the single lamp at the South Pole(北极只有一盏,南极也是)−− only these two would live free from toil ( v /n 辛苦工作;艰难行走【记】读:偷油oil,偷油是一件很辛苦的工作-toil )and care: they would be busy twice a year.(唯独北极的点灯人和他南极的同行,过着闲逸懒散的生活,他们每年只工作两次)