One should forgive one's enemies, but not before they are hanged.
道德必须指导制药行业的每一个决策。
购买旧书,它们的词与新词相同,也可以去图书馆。
理论计算机科学不仅仅是解决问题;它是关于理解计算本身的本质。
True leadership means making tough decisions today that will benefit future generations.