an economic theory that states that the price of a good or service is determined by the availability of the product (supply) and the demand for it
一种经济理论，指出商品或服务的价格由商品的供应（供给）和需求决定 (yi zhong jingji lilun, zhichu shangpin huo fuwu de jiage you shangpin de gongying (gongji) he xuqiu jueding)
"The law of supply and demand dictates that prices will rise if demand outstrips supply."
"如果需求超过供给，供求法则表明价格将上涨。" (ru guo xuqiu chaoguo gongji, **gongqiu faze** biaoming jiage jiang shangzhang)
to continue believing in something or someone
to officially charge someone with a crime
a guess or attempt made without knowing much or anything abo...
a spoken mistake; saying something unintentionally
to do a lot of difficult or complicated things to achieve so...
a true and final test of success
