他们新开垦的耕地面积达五千公顷。
The area of their newly cultivated land has come to/reached five thousand hectares.
他们新开垦的耕地面积达五千公顷。
The new area of assart field reaches to five thousands hektare.
在库区实地的研究结果表明，在新开垦的坡耕地幼龄果园里，若果树间地表无其它作物覆盖时，有32.6％以上的降雨以地表径流的形式流失；
Results indicated that over 32.6% rainfall will loss by pathway, if crop doesn't cover with the earth's surface of orchard.
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