If you write a call at 90 cents and it goes down to 10, it may make sense to buy it back and unwind your position.是什么意思_If you write a call at 90 cents and it goes down to 10, it may make sense to buy it back and unwind your position.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句