基本解釋[經(jīng)濟(jì)學(xué)]債券觝押証券詞組短語短語haha Collateralised Bond Obligation 債券觝押証券primary collateralised bond obligation 的基礎(chǔ)債券觝押証券collateralised bond obligation更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)債券觝押証券