随着我们年老，我们分泌更少能冲洗掉细菌的唾液，因此牙齿和牙龈更容易退化。
As we age, we produce less saliva, which washes away bacteria, so teeth and gums are more vulnerable to decay.
之后，在1994年，研究者们宣称木菜板上保留的细菌比塑料菜板更少。
Then, in 1994, researchers declared that wood retained fewer bacteria than plastic.
肠道细菌水平改变了的小鼠显现出了更少的恐惧，更敢于走进有光照的箱子。这是动物中毒或生病后的普遍症状。
Mice with altered digestive bacteria showed less apprehension and were less afraid to go into the well-lit box, a common sign the animals are under the influence of drugs or illness.
细菌比动物细胞更少受到盐的渗透作用的影响，因细菌的细胞壁不大有渗透性。
Bacteria are less affected by the osmotic effect of salt than animal cells because bacterial cell walls are less permeable.
而好消息是这样的细菌可以用来使其它部分——跟电影相关更少的残骸——腐蚀得更快些。
The good news is such bugs could be used to hasten the decay of other, less cinematic wrecks.
这降低了向机体转运铁的效率，意味着更多的铁被有害的细菌利用(导致消化系统的问题)，而机体利用的铁就更少。
This reduces their efficiency in delivering iron to your baby, meaning that more iron is available to harmful bacteria (leading to digestive problems) and LESS is available to baby.
单个dna双螺旋结构，这许多基因是约1000年倍太长，无法在细菌细胞内没有被某种程度上凝聚以占用更少的空间。
A single DNA double helix with this many genes is about 1000 times too long to fit inside a bacterial cell without being condensed somehow in order to take up less space.
单个dna双螺旋结构，这许多基因是约1000年倍太长，无法在细菌细胞内没有被某种程度上凝聚以占用更少的空间。
A single DNA double helix with this many genes is about 1000 times too long to fit inside a bacterial cell without being condensed somehow in order to take up less space.
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