gmat og12阅读里的一句话

问题描述:

gmat og12阅读里的一句话
Possibly as numerous as conbentional galaxies,these galaxies have the same general shape and even the same approximate number of stars as a common type of conventional galaxy,the spiral,but tend to be much larger.
求上面一句话的翻译.
还有as a common type of .后面的一坨(一直到结尾)是谁修饰谁的?

句首的possibly as ...as ...,是在说these galaxies,这些星系就如conbentional galaxies一样多.后面的as是have the same ...as ...的结构,另外a common type of conventional galaxy和the spiral是同位语,翻译就是这些星系有着和一种常见传统星系—spiral—一样的大致外形和大约的星球数量.最后再跟一个but的转折句,省略的是these galaxies主语,翻译是但是这些星系更大一些(意思就是这些星系里面的星星和spiral一样,但是星星之间距离更远,这种星系比spiral更大)