supergalaxy
n. [天]超星系
名词复数：supergalaxies
例句
- Ambitious future observers might also send out probes that escape the supergalaxy and could serve as reference points for detecting a possible cosmic expansion. 有企图心的未来观测者，或许会发射一些能够脱离超级星系的探测器，做为侦测宇宙膨胀的参考点。
- local supergalaxy 本超星系