这种细菌附着在病人使用过的东西上。
然而,幼虫所食的某些其他物种却不存在这种细菌。
However, certain other species on which the larvae feed do not harbor the bacterium.
他发现这种细菌对小鼠的作用与抗抑郁药物的作用相似。
He found the bacterium had a similar effect on the mice as an anti-depressive drug might.
Remember that these cells are relatively large compared to bacteria and so diffusion doesn't occur very quickly over this length scale.
要知道这些细胞相对细菌而言,还是比较大的,扩散作用在这种尺度上,发生得不是那么快
This is a bacterium that's normally present in humans; it colonizes all of our intestinal systems.
这种细菌在人体中很常见,栖居在我们所有人的肠道系统中
Won't help me against other bacteria, but only against the one that I've got.
但对其他细菌却不起作用,只能抵抗我感染到的这种细菌
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