The cold has made already substandard living conditions even worse.寒冷使得已经较差的生活环境变得更糟糕。Too many families are still living in substandard housing.仍有太多家庭居住条件达不到标准.The reputation of the firm was blown upon for passing substa...
狄喇克的理论还预言有一种质子的姐妹粒子,带负电荷, 叫做反质子.Dirac's theory also predicted a negatively charged sister for the proton, called the antiproton.你将需要100000个Fermilab制造出的反质子才能够点燃一盏灯.You would need 100,000 Fermilabs to power a single l...