Clusters of young, blue stars trace a ring around a center that is rotating with the galaxy.

成团的年轻蓝星围绕一个环形的轨迹旋转。

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Clusters of young, blue stars trace a ring around a center that is rotating with the galaxy.

成团的年轻蓝星围绕一个环形的轨迹旋转。

youdao