免稅的英語翻譯：

【經(jīng)】 duty free; exempt from taxes; exemption; exemption from duty
exemption of tax; free of duty; free of tax; immune from taxation
tax exemption; zero rates of duty; zero-rating

債券的英語翻譯：

bond
【經(jīng)】 bond; bond certificate; debenture; debenture certificate
debt obligations; evidence of debt; loan stock; redemption of bonds
t-bond