保證金證券 margin securities business: 保證金買賣margin securities trading account: 保證金證券交易戶口securities margin financier: 證券保證金融資人securities margin financing: 證券保證金融資securities: 期貨; 特設證券; 證券,有價證券; 證券股票; 證券,債券; 證券;擔保品下載手機詞典可隨時隨地查詞查翻譯