B：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!
L：What's that?
什么事?
B：How many planets are there in the solar system?
你知道太陽系有多少行星嗎?
L：That's easy. Everyone knows that there are nine.
很簡單，大家都知道有九大行星。
B：Not anymore! Can you believe it? They've decided that Pluto is not a planet anymore!
現在可不是啦!你相信嗎?他們決定取消冥王星的行星資格了。
L：Nice try. I wasn't born yesterday, you know.
想得美。別哄我了，我又不是三歲小孩。
B：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。
L：That sounds crazy. But 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。
B：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,以前人們曾經以為地球是平的。
L：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的，不存在其他運行的方式。
B：We actually know relatively little about space and the cosmos.
可能事實上我們對空間和宇宙的了解只是非常有限的一點點。
L：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?
B：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。
L：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?
B：I hope not. I think they would be a threat to those of us that lived on the 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。
L：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!
B：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。
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