博士解释说，“从人类诞生开始，存在于泥土、未经处理的水和粪便中的微生物就伴随我们一起生存。”
"The bottom line is organisms that were present in mud, untreated water and feces were with us right from the start of humanity," Rook explained.
大多数科学家相信时间就是诞生宇宙的大爆炸那一刻才开始有的，即137亿年前才有时间的存在。
Most scientists believe it was created along with the rest of the universe in the Big Bang, 13.7 billion years ago.
既然宇宙诞生时是从一个质点开始的，而且这个质点是由大小的，那么我们的宇宙是否也存在大小呢？
Since the birth of the universe was started from a particle, and the particle size is, then we also exist in the universe is the size of it?
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