Black Hole Physics的用法和樣例：
例句
- An active galaxy is a star system with a humongous black hole at its centre.
一個(gè)活躍的星系是一個(gè)中央部位有一個(gè)極大的黑洞的恒星體系。 - Initially the gas in the cluster is very hot, and the supermassive black hole in a centrally located large galaxy is quiet.
起初星系團里的氣體溫度極高，而位在星系團中央巨大星系里的黑洞并不活躍。
