direct dealing的用法和樣例：
例句
- A graphical display error in direct trading has been corrected.
直接交易中出現的一種圖像錯誤被解決了。 - The Intermediation Theory of the Firm thinks that firms are formed when the gains from intermediated exchange exceed the gains from direct exchange.
摘要企業的中間層理論認為當來自中間層的交易凈收益超過買賣雙方的直接交易凈收益時，企業就會形成。
