英语翻译
问题描述：
英语翻译
Measuring 2,500 miles across and weighing five million trillion pounds,the rock Was found on Valentine’ s Day buried in the core of a white dwarf star,and it has excited the scientific world.
across 是固定用法？
答
Measuring 2,500 miles across and weighing *five million trillion* pounds直径达2500英里长、重达*5百万万亿*磅注：Trillion如果是在采用国际制度（S.I.units)的国家来说,是10的12次方（就是说有13个位数,12个零-...