An efficient bulb may lighten the load of power stations...一个节能灯泡也许就能减轻发电站的负荷。The sun was streaming in through the window, yet it did nothing to lighten his mood.阳光透过窗户照进来，可是这也不能让他的心情开朗起来。He did his best to lighten thing...
The mayor laid the cornerstone of the new library.市长为新图书馆奠基.The doctrine of surplus value is the cornerstone of Marx's economic theory.剩余价值学说是马克思经济理论的基石.The founders of our religion made this a cornerstone of morali...