The findings, detailed in this week's issue of the journal Nature, indicate there are about two free-floating planets per star in our galaxy—and perhaps in other galaxies, too.
发现表明，在我们的银河系中每一颗恒星大约会有两个不受约束的行星。 大概其它星系也是如此。
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Disappointed by the us national soccer team's recent lousy play, critics are asking why the country can't produce a soccer star, the Wall Street Journal website reported.