国际金融公司在最近的一份全球最宜做生意的183个地区的报告中,把朱巴排位159。
A recent report by the International Finance Corporation ranks Juba 159th out of 183 places worldwide for ease of doing business.
大质量恒星有所予,但它们同样有所取,这便给银河系中的“宜居地带”造成了另外的限制。
Massive stars give, but they also take away-and that puts the inner limit on the galactic habitable zone.
专家们说目前发现的700多颗外部行星中,只有少部分位于宜居带当中。
Experts report that there are already more than 700 exoplanets discovered, but only a few are in the habitable zone.
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