option dealing的用法和样例：
例句
- Welcome enthusiasts of stock option trading, futures trading and commodity option trading!
欢迎爱好者股票期权交易，期货贸易和商品贸易的选择！ - A term used by many brokerages to represent the closing of a short position in option transactions.
在期权交易中有许多经纪人使用的买进来平仓。 - Profits are up because of positive contributions from cash-settled option transactions from changes in the share price of Volkswagen Group.
利润增长的积极贡献，因为从现金结算选择权交易的变化，股票价格的大众汽车集团。
