[, ] (often Stock Exchange) a place where shares in companies are bought and sold; all of the business activity involved in doing this证券交易（所）◆The technology firm is to start trading on the London Stock Exchange next month.这家科技公司将于下个月在伦敦证券交易所开始上市交易。◆The company is expected to float(= to sell its shares) on the Australian Stock Exchange later this year.预计这家公司将于今年晚些时候在澳大利亚证券交易所上市。◆YTL is listed on the Malaysian Stock Exchange.YTL 公司在马来西亚证券交易所上市。◆a stock exchange listed company上市公司➡securities market ⨁the stock exchange closes / opens股票交易收盘／开盘⨁the stock exchange falls / rallies / rises股票交易下跌／回升／上涨⨁a stock exchange collapse / crash / slump股票交易暴跌／崩溃／萧条