单词:apartment-house of direct access
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[00:00.79]Unit 2 Life in the Future [00:03.82]Lesson 7 [00:08.71]Exercise 1.2 [00:11.67]Jules Verne (1828-1905) [00:16.82]Science fiction is a popular type of writing, [00:20.28]and many people think of Jules Verne [00:22.84]as the father of science
September Equinox 秋分 We have an equinox because an imaginary plane extending outward from Earth's equator isn't the same as the plane of Earth's orbit around the sun. Learn more about today's equinox -- on Earth and Sky.. JB: This is Earth and Sky
Dialogue 8 Laurance-Where on earth are we? Soony- Judging by all the traffic, I'd say we're near the heart of the downtown area. Laurance-What did I do wrong? Did I take a wrong turn? Soony- I'm not s
Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel
并列句(compound sentence)并列句包括两个或两个以上并列而又相互独立的简单句。其结构为简单句+连词+简单句或中间由;连接。连词或连接副词根据含义不同,有下列几类: 用来连接两个
The distance from the surface of Earth to the center is 3,959 miles, which isn't so very far. 从地面到地心的距离为6370公里。这不算太远。 It has been calculated that if you sunk a well to the center and dropped a brick into it, 有人