Astronomers tacitly assume that stars of the same luminosity and color all have the same mass.天文学家心照不宣地默认,光度和颜色都相同的恒星具有相同的质量.People assume the two blonds are related, so they let that assumption stand.人们假设这两个金发碧眼的人有亲戚关系,...
Charlie was earning eight pounds, I was earning five.查利赚了8英镑，我赚了5英镑。He awoke to find Charlie standing near the bed.他醒了过来，发现查利正站在床边。Charlie humped his rucksack up the stairs to his flat.查利费力地将背包背到楼上自己的公寓里。...