梅英疏淡,冰澌溶泄,东风暗换年华。金谷俊游,铜驼巷陌,新晴细履平沙。长忆误随车,正絮翻蝶舞,芳思交加。柳下桃蹊,乱分春色到人家。五更鼓角声悲壮,三峡星河影动摇。When the demand for something is greater than its supply, producers and suppliers will sense the possibility of making a profit - the excess of revenues over expenses is the profit. |