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