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For the first half of geological time our ancestors were bacteria. Most creatures still are bacteria, and each one of our trillions of cells is a colony of bacteria.
在地质时代的前半部分,我们的祖先是细菌。大多数生物仍然是细菌,我们数万亿个细胞中的每一个都是细菌的集落。
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16 种意境 · 9:16 竖屏 · 1440 × 2560 高清图片