我们知道整个宇宙在不断扩张、持续变冷，早期的宇宙必定比较小、比较热，因此我们还研究，在研究小型热性物体。
We know that the universe is expanding and cooling, so earlier on it was smaller and hotter. And we are studying the properties of small, hot things.
我们的躯体与寿命和整个宇宙相比较，真的是微不足道。
Our body and life span when it is compare to the size and life span of the universe is so insignificance.
我们的躯体与寿命和整个宇宙相比较，真的是微不足道。
Our body and life span when it is compare to the size and life span of the universe is so insignificance.
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