太陽系有多少行星？你覺得會在外太空遇到外星人嗎

今天的這段對話，在討論外太空，
 
太陽系有多少行星？你覺得會在外太空遇到外星人嗎
 
來聽今天的講解:
 
A:  guess what! I know something you don't know!
 
你猜怎么著？我知道一些你不知道的事!
 
B:  what's that?
 
什么事?
 
A:  how many planets are there in the solar system?
 
你知道太陽系有多少行星嗎?
 
B:  that's easy. Everyone knows that there are nice.
 
很簡單,大家都知道有九大行星.
 
A:  not anymore! Can you believe it? They've decided that Pluto is not a planet anymore!
 
現(xiàn)在可不是啦!你相信嗎?他們決定取消冥王星的行星資格了.
 
B:  nice try. I wasn't born yesterday, you know.
 
想得美.別哄我了,我又不是三歲小孩.
 
A:  I'm dead serious. They've decided that it's too small to be a planet, but actually they haven't yet agreed on how big something has to be in order to be a planet anymore.
 
我是認真的.他們認為冥王星太小了,不夠做行星的資格,不過他們尚未對行星的體積究竟該有多大達成一致的意見.
 
B:  that sounds crazy. They can't just change their mind about things like that.
 
這聽起來簡直是瘋了!他們不能對這種事情隨便亂改主意.
 
A:  yes, they can. If you remember correctly, people used to believe that the world was flat.
 
是的,他們可以.如果你還記得的話,以前人們曾經(jīng)以為地球是平的.
 
B:  I suppose you're right. They also used to think that they were so important that the sun revolved around them, not the other way around.
 
我覺得你說得有道理.他們過去還認為人類是特別重要的,以至于太陽都是圍繞著我們轉(zhuǎn)的,不存在其他運行的方式.
 
A:  we actually know relatively little about space and the cosmos.
 
可能我們隊空間和宇宙的了解只是非常有限的一點點.
 
B:  do you think that we'll one day be able to travel to another planet for a vacation?
 
你覺得未來我們有可能去其他星球度假嗎?
 
A:  I suppose we could actually live on a planet outside of the milky way.
 
我想我們可以居住在銀河系以外的其他星球上.
 
B:  do you think we'll ever get to meet an alien from outer space?
 
你覺得咱們會在外太空遇到外星人嗎?
 
A:  I hope not. I think they would be a threat to those of us that lived on Earth.
 
我希望不會.我覺得他們可能對生活在地球上的人類是一種威脅.
 
B:  you're so old-fashioned. That's what people used to think about people from another country!
 
你的思想可太老派了.這就好像人們以前對外國人的看法一樣!
 
A:  point taken. Hopefully one day, we'll live in an interplanetary society.
 
知道啦.希望未來有一天,我們能生活在一個行星際的社會里.