石油和天然气行业必须进化，否则就会被淘汰。

实现明天理想的唯一障碍是今天的疑虑。

The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary.

机会是一个没有意义的词；没有原因，什么也不能存在。