The market is a reflection of the economic cycle.

【释义】谗言和巧言佞辞总是甜美讨好人心，而忠诚正直的言辞却常常显得直率尖锐，因而少有人愿意听信。

The pursuit of mathematical knowledge is a never-ending adventure, filled with challenges, surprises, and the satisfaction of solving the unsolvable.

煤炭开采的创新不仅仅是关于开采，而是更智能、更安全、对环境的影响更小。