在能源转型中,煤炭在未来几十年仍将是关键的过渡燃料。
机械和节省劳力的装置只有在降低制造成本时才具有价值。
The true test of a mathematical idea is its ability to inspire further thought.
Dont ever work for someone you dont want to become.
当悲伤来临的时候,不是单个来的,而是成群结队的。
The important thing in life is to have a great aim,and the determination to attain it.