opportunity cost的音标：opportunity cost的英式发音音标为：[ˌɔpə'tju:niti kɔst]opportunity cost的美式发音音标为：[ˌɑpɚ'tunɪti kɔst]...

The real cost approach has been largely superseded by the opportunity cost approach to international trade.实际成本说已基本上为国际贸易的机会成本说所取代.The opportunity cost of capital should depend on market risk.资本机会成本应取决于市场风险.The opportuni...

机会成本...