Though the details are still not clear, it seems that the growth of the black hole is intimately related to the growth of the spheroidal component- an elliptical galaxy, or the bulge of a spiral galaxy- in which it lives.

• 虽然细节仍然不清晰,好象黑洞生长与类星体生长密切有关-一个椭圆的星系,或螺旋形的星系-它在里面的星系凸起。