For example, one American astronaut on a four-month long mission on the Russian space station Mir saw a vision of his dead father.
VOA: special.2010.02.24
A good example of that is CH4, because the CH bond is polar but symmetrically disposed in space.
甲烷就是一个很好的例子,因为极性键是,空间对称的。
Or, my favorite example, the movie 2001: A Space Odyssey.
再来举个我最喜欢的例子,2001太空漫游
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