The ring around the black hole is bursting with new star formation.
那个围绕着黑洞的环中正在绽放着恒星诞生的焰火。
In this image, the bright central star is in the middle of the green ring of gas.
在这张图片里面，中间明亮的行星处在绿色气体组成的环形的中间。
Three common topologies are the star, bus, and ring.
有三种常见的拓扑结构：星型、总线型和环型。
Three common topologies are the star, bus, and ring.
有三种常见的拓扑结构：星型、总线型和环型。
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