Sustainability isn't an option; it's a responsibility we all share.
The friend who holds your hand and says the wrong thing is made of dearer stuff than the one who stays away.
The greatest monarch on the proudest throne, is oblig'd to sit upon his own arse.
煤炭行业要坚定不移地走安全高效、清洁低碳的发展道路。
The true value of oil lies in its ability to transform economies and societies.