Quasars, at billions of light-years from Earth the most distant observable objects in the universe, are believed to be the cores of galaxies in an early stage of development.
呵呵,OG的古怪很多。这是一个同位语来的,只不过被倒装了一下,请看正常语序: Quasars, the most distant observable objects in the universeat billions of light-years from Earth, are believed to be the cores of galaxies in an early stage of development. 只所以被倒装,其目的就是为了强调那个排在前面的短语at billions of light-years from Earth,意思是强调Quasars这个东东,真的离俺们地球好远好远--好多好多billions的光年~~ *_@ *_^ ^_^