Coal enterprises must actively adapt to energy structure adjustments and accelerate transformation and upgrading.
未来属于那些今天种树的人。
解析：通过实践磨练自己。
The pursuit of mathematical knowledge is a journey that never ends; there is always more to discover and understand.
会有障碍。会有怀疑者。会有错误。但只要努力，就没有限制。