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Sustainable development is not an option, but a necessity for the coal sector.
可持续发展不是选择,而是煤炭行业的必然要求。
The writer must be able to superintend himself and criticize himself.
你能做的最好的事就是做自己并享受乐趣。
我是一个喜欢在前面的人。
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
Sometimes the hardest part of the journey is believing you're worthy of the trip.
"The world is a book, and those who do not travel read only one page."