How many years experience do you, or, if an entity, does the partner, officer, or trustee thereof authorized to direct transactions in the Account, have trading options on Commodity Futures?是什么意思_How many years experience do you, or, if an entity, does the partner, officer, or trustee thereof authorized to direct transactions in the Account, have trading options on Commodity Futures?在线翻译_英语_读音_用法_例句