[] the beginning of the day of trading, especially on a stock exchange; the price of a share, currency, etc. at this time（尤指证券交易所）开始交易；开盘价◆Stocks are set to rise at Friday's open.股票周五开盘时很可能会上涨。OPPclose ⨁a flat / low / weak open平价／低价开盘；开盘疲软⨁a firm / high / strong open开实盘；高价开盘；开盘坚挺