They're young, so only a million.
他们是年青的,所以只是一百万。
That's only a small share of the total acreage that could benefit, about half a million acres in all, so it will be vital to prioritize areas at greatest risk of fire or drought.
这只是受益总面积的一小部分,共约50万英亩,所以优先考虑火灾或干旱风险最大的地区是至关重要的。
The volcano made it above that surface only a million or so years ago, since when the island has grown to about 100 square kilometres.
火山喷发使这座岛屿露出水面距今大概只有一万年左右,自那以后,这座岛屿生长到了大约100平方公里。
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