穿过小行星带继续前进，我们进入了气体巨行星区域：木星、土星、天王星、海王星，所有这些都使地球看起来像个侏儒。
Moving on through the asteroid belt we enter the realms of the gas giant planets: Jupiter, Saturn, Uranus, and Neptune, all of which dwarf the Earth.
太阳作为太阳系中的气体巨行星，氦含量丰富。
The Sun is rich in helium, as are the solar system’s gas giant planets.
太阳作为太阳系中的气体巨行星，氦含量丰富。
The Sun is rich in helium, as are the solar system's gas giant planets.
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