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。

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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。

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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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