It is estimated that less than five percent of the organic matter produced at the surface reaches the abyssal plains.
据估计，来自海面的有机物质到达海底时其营养物质剩余不到5%。
I shall be accused of imagination and exaggeration, whereas the truth is that no one could imagine, much less exaggerate, the horrors that I saw upon those rolling, chalky plains.
但事实却是，无人可以想象，更不用说去夸大，我在这片起伏的白垩质平原上所看到的种种恐怖景象。
Less than 100 meters above sea level of the platform, the plains and sandy areas of the island about 64 percent, the natural conditions for the growth of the coconut, is unique.
低于海拔一百米的台地、平原和沙地约占全岛面积的百分之六十四，这些自然条件对椰子的生长来说，可谓是得天独厚的。
The birthplace of the Chinese civilization is the Central Plains where the climate has less variation than the Mediterranean or the Near East.
与地中海和近东地区相比，中国文明的发祥地中原地区的气候类型更加有规律可寻。
The birthplace of the Chinese civilization is the Central Plains where the climate has less variation than the Mediterranean or the Near East.
与地中海和近东地区相比，中国文明的发祥地中原地区的气候类型更加有规律可寻。
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