As a clean energy source, natural gas will play a significant role in China's energy structure adjustment.
天然气作为清洁能源，将在我国能源结构调整中发挥重要作用。
Millions saw the apple fall, but Newton asked why.
I prefer to buy stocks that are not widely followed by analysts.
领导力是关于以清晰和信念做出艰难的决定。
坚持是数学研究的关键，许多伟大的成果来自于长期的奋斗。