In this series,we will assume that the initial margin and the maintenance margin for this contract are $5,000 and $4,000,respectively.是什么意思_In this series,we will assume that the initial margin and the maintenance margin for this contract are $5,000 and $4,000,respectively.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句