When the hydrogen used as fuel vanishes, and fusion slows, gravity causes the star to collapse in on itself.
当作为燃料的氢消失，且聚变过程减缓时，重力就导致恒星向内坍缩。
You think the grief will make you smaller inside, like your heart will collapse in on itself, but, it doesn't.
你以为悲恸会使你内心渺小，好似你的心会崩塌，但是不。
The field equations of his theory of relativity imply that a large star or cloud of gas would collapse in on itself and form a black hole.
他的相对论中域方程解出来的结果就是，大型恒星或者空间气团会被自身的引力塌陷而形成黑洞。
In a closed universe, there is enough matter to reverse expansion. Eventually, such a universe will collapse on itself.
在封闭的宇宙中，有足够的物质阻止宇宙膨胀，最终这样的宇宙就会崩缩。
In a closed universe, there is enough matter to reverse expansion. Eventually, such a universe will collapse on itself.
在封闭的宇宙中，有足够的物质阻止宇宙膨胀，最终这样的宇宙就会崩缩。
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