A corporation can buy back its bonds by paying investors the face value (plus a sweetener).
公司可通过支付投资人债券票面价值（外加甜头）来买回自己的债券。
《柯林斯英汉双解大词典》
2
If this corporation issues $10 of 10% bonds payable, it will incur interest expense of $1 per year.
如果该公司发行10美元，年息10%的应付债券，每年的利息费用为1美元。
3
If a corporation want to issue bonds in mainland market, it has to overcome lots of obstacles which are set by the government no mater it is a Chinese corporation or not.