The best way to learn is by doing.
最好的學(xué)習(xí)方法就是實(shí)踐。
煤炭是我國的主體能源，在相當(dāng)長時期內(nèi)仍將是我國能源安全的基石。
Success is not final, failure is not fatal: It is the courage to continue that counts.
"It is impossible to go through life without trust: that is to be imprisoned in the worst cell of all, oneself."