[, ]a change of sth so that it is the opposite of what it was颠倒；彻底转变◆the reversal of a decision决定的根本改变◆The restructuring is a complete reversal in company strategy.这次重组是公司策略的彻底转变。◆The latest fall in prices is a reversal of fortune for these stocks.最近的价格下跌对这些股票来说是时运逆转。 [] a change from being successful to having problems倒退；逆转；退步◆The company's financial problems were only a temporary reversal.这家公司的财务问题只是暂时的逆转。