Once SMBHs reach a critical size they can transform into quasars, which are extremely bright objects as small as a star but as luminous as an entire galaxy.
一旦超大质量黑洞到达了临界的大小它们就可以变成有着恒星大小却如整个星系般闪亮的类星体。
She decided to transform her training routine and diet, and soon was back on track to become an all-star athlete.
她决定改变训练模式和饮食，很快又恢复了自己的实力，成为一名明星运动员。
She decided to transform her training routine and diet, and soon was back on track to become an all-star athlete.
她决定改变训练模式和饮食，很快又恢复了自己的实力，成为一名明星运动员。
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