✔ 最佳答案
Astronomers believe that a black hole forms when a massive star runs out of nuclear fuel and is crushed by its own gravitational force.
天文學家相信當一個巨大的星用光核燃料而且被它自己重力的力量粉碎的時候,一個黑色的洞形成。
While a star burns fuel, it produces an outward push that counters the inward pull of gravity.
一個星燃燒燃料,不過它生產制止內部的向外的推動地心引力拉。
When no more fuel remains, the internal pressure drops, and the star can no longer support its enormous weight.
當沒有更多的燃料保持的時候,內在的壓力降低, 而且星能不再支持它的巨大重量。
It throws off its outer layers in a gigantic explosion and its core collapses.
它在一個巨人般的爆炸中離開它的外部層丟,而且它的核心崩潰。
希望幫到你^^
(我一句一句解)