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How could so many tiny fragments of DNA be pieced together?
怎么可能将如此多的DNA小片段整合起来呢?
youdao
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The grains here are tiny fragments of a baby sea urchin shell.
例如这些颗粒就是海胆幼体外壳上的碎片。
youdao
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The grains here are tiny fragments of a baby sea urchin shell.
例如这些颗粒就是海胆幼体外壳上的碎片。
youdao