戏马台前,采花篱下,问岁华、还是重九。恰归来、南山翠色依旧。帘栊昨夜听风雨,都不似登临时候。一片宋玉情怀,十分卫郎清瘦。红萸佩,空对酒。猿鸟犹疑畏简书,风云常为护储胥。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. |