国债在到期之前并不能被赎回，也没有赎回条款。
Treasury securities cannot be redeemed before maturity and do not have call provisions.
一般来说，没有必要去担心期权性风险，或赎回条款，就只是数学游戏。
Generally, you don't have to worry about optionality or call provisions and so it's math.
在存储库中创建了内容之后，连接器需要返回条目的 String 条目 ID。
When the content has been created in the repository, your connector will need to return a String item ID for the item.
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