Other variations of the plain vanillabonds include zero coupon bonds which does not pay out interest but interest accrues and is paid in a lump sum at maturity.
其他特殊种类债券还包括“无息债券”，它在有效期内不付利息，而是累积起来在到期时一次偿还。
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Prior to the early 1980s, the bond market was comprised mainly of 'plain vanilla' bonds with simple cashflow structures, where coupon payments and maturity were fixed at the outset.