基本解釋無觝押債權(quán)股額 無擔(dān)保債券詞組短語短語convertible subordinated unsecured loan stock 可轉(zhuǎn)換股的次級無觝押債權(quán)股額unsecured loan stock更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)無觝押債權(quán)股額無擔(dān)保債券