科学家指出，这些食肉动物只生活在群岛中的四个小岛上，那里的猎物基数太小，哺乳类食肉动物无法生存。
These carnivores live only on four small islands in the archipelago where, scientists note, the prey base is too small to support mammalian carnivore.
它们可以附在胞核嘧啶上，胞核嘧啶是组成基因代码的“字母”的四种碱基数之一，帮助调控转录的过程。
These can attach themselves to cytosine , one of the four chemical bases that form the "letters" of the genetic code.
第四季度仍有一个月受到相关基数的影响。
The fourth quarter still has a month to get the influence of relevant base.
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