PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Uploaded 03-02-20 Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Sign up for the mailing list to get episode notifications and hear special announcements! https://tinyurl.com/yx9cusk5 Check out the Space Time Merch Store https://pbsspacetime.com/ If the universe goes on forever, does that mean there are infinite versions of y...
打开播放器:完整文字稿,每个单词都可点击,附翻译和单词卡。
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B2 · 中高级
能看懂电视新闻就会觉得轻松
- 89% 的单词在 B1 或更简单的水平。
- 每分钟 123 词:语速慢,清晰。
- 整集共有 120 个较难的单词(B2 及以上)。
试一试:点任意单词
来自本集开头的真实句子,每个单词都标出了难度级别。
, ?
And does that mean one of them didn't do that really embarrassing thing that one time?
点一个单词,用你的语言查看释义。
这些单词你认识吗?
本集中 8 个较难的单词。点一个查看释义,然后标记一下。
标记几个单词,我们会告诉你这一集是否适合你的水平。
这一集适合你吗?
B2 · 中高级
能看懂电视新闻就会觉得轻松
- 89% 的单词在 B1 或更简单的水平。
- 每分钟 123 词:语速慢,清晰。
- 整集共有 120 个较难的单词(B2 及以上)。
文字稿
本集开头部分。完整文字稿在播放器中。
较难的单词(B2+)
If the universe goes on forever, does that mean there are infinite versions of you? And does that mean one of them didn't do that really embarrassing thing that one time? The cosmological equations that so beautifully describe our universe make an uncomfortable prediction. Interpreting them in the most straightforward way, they tell us that the universe may be infinite.
Or not, it could turn out that the universe contains enough matter and energy to close in on itself and be finite. Or perhaps the simplest interpretation of the cosmological equations is too simple. But according to our best theoretical understanding, an infinite universe seems at least possible
– and some would say likely. If so, this raises an even more crazy possibility. An infinite universe may literally contain every possible thing allowable by the laws of physics, each in infinite multitude.
以上是开头部分。 本集其余部分(20 分钟)在播放器中:每个单词都可点击,附翻译、生词收藏和单词卡。
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