A black hole, like theone in Centaurus A, is formed when a massive star collapses from itsown gravity. The pull of gravity is so strong that not even light canescape.是什么意思_A black hole, like theone in Centaurus A, is formed when a massive star collapses from itsown gravity. The pull of gravity is so strong that not even light canescape.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句