The past is always tense, the future perfect.
The study of automorphic representations is a reflection of the unity of mathematical knowledge.
The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.
电影应该挑战观众，而不仅仅是娱乐。
我们必须确保基因编辑造福全人类，而不仅仅是少数特权阶层。