They used a high dose of antibiotic to kill the native gut bacteria and then fed those mice fecal material from a protected strain.

他们用高剂量的抗生素来杀死易得病小鼠肠道里原生的细菌，然后从其他受保护的小鼠身上获取得的排泄物来喂那些小鼠。

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Even though fill material is mechanically compacted during site preparation it doesn't drain as well as native slopes.

即使填充材料的压实机械整地过程中不流失，以及本地的斜坡。

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"I'm a scientist, and it means I regret that important material is getting reburied, " he said. "But when you find that these remains are genetically Native Americans, it's not our call anymore.

“作为一个科学家，我对于重新埋葬如此重要的研究材料感到十分可惜，”他说，“但当你发现这些遗骨在基因上属于美洲原住民时，它就不再是我们说的算的了。”

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