All the tyrannies of the past were half - hearted and inefficient.以前的所有暴政都不能彻底,都是软弱无能.The telephone is one of the great tyrannies of modern life.电话是现代生活中让人最反感的必需品之一。By comparison with that existing today, all the tyranni...
N acetylcysteine ( NAC ), a precursor of glutathione, is a thiol antioxidant.N-乙酰半胱氨酸 ( NAC ) 为谷胱甘肽的前体, 是一种含有巯基的抗氧化剂.Error is often the precursor of what is correct,but conceit is the prelude to a fall.错误往往是正确的先导,骄傲是跌跤的前...