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Language is not just a system of symbols, but a set of practices with social and cultural significance.
语言不仅仅是符号系统,还是具有社会和文化重要性的一组实践。
As a clean energy source, natural gas will play a significant role in China's energy structure adjustment.
市场瞬息万变,唯有以变应变才能立于不败之地。
Those who dream by day are cognizant of many things which escape those who dream only by night.
能源行业不仅仅是钻井和管道;它是关于负责任地为世界提供动力。