option dealing的用法和樣例：
例句
- Welcome enthusiasts of stock option trading, futures trading and commodity option trading!
歡迎愛好者股票期權交易，期貨貿易和商品貿易的選擇！ - A term used by many brokerages to represent the closing of a short position in option transactions.
在期權交易中有許多經紀人使用的買進來平倉。 - Profits are up because of positive contributions from cash-settled option transactions from changes in the share price of Volkswagen Group.
利潤增長的積極貢獻，因為從現金結算選擇權交易的變化，股票價格的大眾汽車集團。
