他服了一疗程的抗生素来杀死细菌。
在实验室里繁殖这些细菌是可能的。
It is possible to multiply these bacteria in the laboratory.
霍乱是一种由细菌引起的感染。
温牛奶是细菌理想的繁殖地。
我们的免疫系统正在杀死数以十亿计的细菌。
这些细菌对人无害。
这是一种有效的灭菌方法，确实把细菌都杀光了。
It is an effective treatment for the bacteria and does kill it off.
实际上，这些细菌有的对你有益。
人行道上的细菌比家里的要多。
到底在五秒之内转移了多少细菌呢？
一只鞋上就聚集了大量细菌。
但是有多少细菌能在五秒钟内转移呢？
一个人只是细菌繁殖其他细菌的方式。
周围的病毒和细菌是否突然发生了变化？
Was there a sudden change in the viruses and bacteria around?
细菌以这种油为食，并释放硫化氢气体。
不仅仅是食物掉在地上会导致细菌污染。
It's not just dropping food on the floor that can lead to bacterial contamination.
不当丢弃的垃圾会传播细菌并有害健康。
Improperly discarded garbage can spread bacteria that are dangerous to health.
细菌留在了人体内。
这些细菌停留在大多数表面上的可能性非常低。
The chance of these bacteria being on most surfaces is very low.
伤口沾染了细菌。
当地毯被污染时，只有不到1%的细菌会被转移。
When a carpet was contaminated, less than 1% of the bacteria were transferred.
细菌——一种原始的生命形式——在那里被发现。
And bacteria, primitive forms of life, have been seen there.
细菌无处不在。
事实是，你有很深的地下石油储藏，那里还有细菌。
What happens is you have deep underground oil deposits and there are bacteria.
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.
但是，这些细菌出现在大多数表面上的几率非常低。
But the chance of these bacteria being on most surfaces is very low.
即使细菌真的从火星来到地球，它们也一定已经灭绝了。
Even if bacteria did arrive on Earth from Mars, they must have died out.
当人们咳嗽或打喷嚏时，细菌就会四处传播，四处降落。
When people cough or sneeze, the germs spread widely, landing here and there.
她刚上大学时主修的是生物专业，但她发现自己“觉得细菌很无趣”。
She began college as a biology major but found she was "really bored with bacteria".
但当食物与瓷砖或木头接触时，会有48% -70%的细菌（留在上面）。
But when the food was in contact with tile or wood, 48-70% of bacteria were.
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