Friedman, Billings, Ramsey (FBR), an investment bank, reckons trading commissions have plummeted by almost a third since 2000, and by even more if higher-margin option trades are excluded.是什么意思_Friedman, Billings, Ramsey (FBR), an investment bank, reckons trading commissions have plummeted by almost a third since 2000, and by even more if higher-margin option trades are excluded.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句