Active galaxies give off bright radiation from their cores, where gas heats up as it is compressed into a swirling accretion disk encircling the black hole.
活动星系从它们的核部发出明亮的光芒，在那里，气体被加热并压缩成一个漩涡状的圆盘，漩涡的中心便是黑洞。
Looking at one galaxy in the Catalog, Marianne noticed that the point of light was offset from the centre and yet was so bright that it could well be associated with a supermassive black hole.
在观察软件目录里的一个星系时，玛丽安注意到一个亮度极高的亮点正远离星系中心，很可能是一个超大质量黑洞。
Small convenience stores sit practically on every corner, either hole-in-the-wall mom-and-pop shops, or the bright, boxy chain store variety.
便利店遍布每个角落，要么是不起眼的夫妻杂货店，要么是亮堂堂的连锁便利店。
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