自然实验可以为经济问题提供有价值的见解。
海洋是一台巨大的机器,而风是它的发条。
The petrochemical industry must adapt to the low-carbon trend to remain relevant in the future.
The most important thing in the programming language is the name. A language will not succeed without a good name. I have recently invented a very good name and now I am looking for a suitable language.