Deep in the forests of South America's Patagonia region, scientists have tracked down the wild ancestor of the yeast that makes cold-brewing ale possible, according to a new study.

根据一份新的研究报告，在南美的巴塔哥尼亚地区的森林深处，科学家们已经发现了酵母的野生祖先。这种野生酵母使冷酿啤酒成为可能。

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A possible explanation is that the ancestor of Tibetan chicken lived in a relatively isolated environment after entering into the high altitude area and developed unique genetic characters.

推测可能原因是藏鸡的祖先在进入高原以后处于相对封闭的环境，从而形成了独特群体遗传特性。

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By using the label information of the ancestor element as much as possible, those elements that do not satisfy match can be filtered out as early as possible, thus speed up the matching process.

通过尽可能多地利用祖先元素的标签信息，可以尽可能早地过滤掉不匹配的元素，加速了匹配的过程。

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