But as detection methods improved, astronomers began to find planets closer in size to Earth and planetary systems that contain nearly as many planets as our solar system.
但随着观测手段的提高，天文学家们开始找到与地球的大小相近的行星，以及与我们的太阳系拥有大致相同数目行星的行星系统。
The orbit of Venus, the 2nd planet outward form the sun, comes closer to Earth than any other planetary orbit.
金星的轨道，围绕太阳外运行的第二颗行星，它比任何其它的行星轨道都靠近地球。
The planetary high doesn't last. The closer the story comes to a lumbering parable of colonialist aggression in the jungles of an extragalactic Vietnam, the more the enchantment fizzles.
波澜壮阔的宇宙场景并没有让观众陶醉很长时间，随着故事情节的深入，你越来越觉得这是发生在银河系外的一场越南战争，沉重的寓意让起初的激动心情逐渐消退。
The planetary high doesn't last. The closer the story comes to a lumbering parable of colonialist aggression in the jungles of an extragalactic Vietnam, the more the enchantment fizzles.
波澜壮阔的宇宙场景并没有让观众陶醉很长时间，随着故事情节的深入，你越来越觉得这是发生在银河系外的一场越南战争，沉重的寓意让起初的激动心情逐渐消退。
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