The result is the varied, rainbow like trail for Regulus (left) and the steadier, consistently reddish trail for Mars.
结果就是这张多彩、像彩虹般的Regulus（左）和更为稳定、持续发出红光的火星轨迹了。
He followed the tenuous trail of the rainbow comet, a natural stellar phenomenon said to lead directly to Roon.
他紧跟彩虹彗星的细长尾迹——这种天然的星际现象据说可以引领人们直达鲁恩。
He followed the tenuous trail of the rainbow comet, a natural stellar phenomenon said to lead directly to Roon.
他紧跟彩虹彗星的细长尾迹——这种天然的星际现象据说可以引领人们直达鲁恩。
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