yóu yú / gōng yìng / duǎn quē / hēi shì / shàng / de / yào jià / yí yè / zhī jiān / zhǎng / le / jǐ bèi由于供应短缺,黑市上的药价一夜之间涨了几倍。Because of the supply shortage, medicine prices on the black market rose several times overnight.