They argue that the first hunter-gatherers to develop rice agriculture must have done so in this southern zone, within the apparent present-day geographic range of wild rice.

他们认为，最早发展水稻农业的狩猎采集者一定是在这个南部地区，在现在野生水稻明显的地理范围内。

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But at present, with nothing approaching a unified command, the rebels appear divided about whether they want a no-fly zone.

但在目前，近乎于没有统一指挥的叛军就是否想要禁飞区的问题出现了分歧。

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Prior to the present outbreak, Angola was not considered to fall within the geographical “hot zone”, thought to be in central and eastern Africa, for outbreaks and sporadic cases of this rare disease.

在本次暴发之前，未将安哥拉考虑为属于这一罕见疾病暴发和散在病例的地理“热区”。 据认为，它在中部和东部非洲。

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These people were trapped in a time -- a present-oriented time zone in which you never think of the future, you never think of the past.

CNN: Researcher: It's not bad apples, it's the barrel

If so, promising planets may have been sterilized by solar flares or frozen in the past, which wouldn't be reflected in present-day habitable-zone calculations.

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"The role of liquid water on Mars is of great importance for its habitability and this study using Mars Express describes a very large zone where groundwater was present for a long time, " said Olivier Witasse, a project scientist with ESA's Mars Express.

MSN: New proof that water existed underground on ancient Mars