非球面的与球状体略微不同,只有很小偏离, 如镜片.Varying slightly from sphericityand having only slight aberration, as a lens.一种叫“博克球状体”(Bokglobule)的冷分子氢“小金块儿”形成逆着星团的剪影.A nugget of cold molecular hydrogen , called a Bok globule , is silhouetted...
关键是你的饮食要多样化，并保持均衡。It is essential that your diet is varied and balanced.我们一点都不抵触多样化；实际上，我们需要多样性更丰富一些。We have nothing against diversity; indeed, we want more of it.多样化使生活更有情趣！Variety is the spice of life!...