So the gene could have been favored because it conferred protection against some disease, with thicker hair being swept along as a side effect.
所以这个基因受到喜爱是因为它给予对抗疾病的保护,而更厚的头发则是一个副作用。
It covers the moon's leading hemisphere - the side that faces forward as it moves in its orbit - which suggests that the black material has been swept up from space as the moon moves around Saturn.
土卫八较暗的一面实在是非常的黑暗,它覆盖着土卫八正对公转的半球被认为在绕土星公转时被宇宙空间扫除了一些黑色的物质,所以它只是表面的一层不足一米的薄层。
The snow walls pressed him on every side, and a great surge of fear swept through him — the fear of the wild thing for the trap.
厚重的雪从每个方向压迫着它,一种恐惧涌向它——对圈套的恐惧。
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