By measuring the motion of the galaxies in a cluster, astronomers can infer the cluster's mass.通过测量星系在一个星系团内的运动,天文学家们可以推定这个星系团的质量。They turned their telescopes towards other nearby galaxies...他们把望远镜转向附近其他星系。Space fli...
He took that as an auspice of happiness.他把那看作是幸福的征兆.It is the symbol of dignitary , reverence, and auspice.是权贵, 尊严和吉祥的象征.He took her gentle words as an auspice of happiness.他把她话当作是幸福的吉兆....