小说主人公“黑骏马”是一匹漂亮的优种黑马，从小生活在贵族人家，性格温顺、善良，而且聪明，主人非常喜欢他。
Novel leading character "black beauty" dark horse is a horse pretty good seed from elite families living in character everyone and kind and smart like his great master.
水盾草在所调查的大部分沉水植物群落中基本上为优势种或共优种，并且其优势度与物种数呈显著负相关。
Cabomba had been the dominant or co-dominant species in the most investigated submerged plant communities, and its dominance negatively correlated with the number of species markedly.
对系统某些种群因捕获造成过度开发，如何通过征税恢复最优种群水平作了适当的研究；
By taxing about some over-exploitation populations how to restore optimal population level is moderately studied.
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