虽然国债看上去不错，债券市场的其他品种更有吸引力，它们包括市政债券，公司债券，可转换证券，一些抵押贷款证券和优先股。

While Treasuries look rich, other parts of the bond market beckon, including municipals, corporate bonds, convertible securities, some mortgage securities and preferred stock.

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在3020亿美元AIG信用保险契约中，大约2350亿美元是卖给了外国银行，而且相关债务是优级住房抵押贷款以及公司债券。

Of the $302 billion in insurance outstanding at A.I.G., about $235 billion was sold to foreign banks and covers prime home mortgages and corporate loans.

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公司债券无抵押债务，只依赖借方信用质量作为支持，并无抵押品，协议属于契约形式。

Debenture an unsecured debt backed only by the credit worthiness of the borrower. There is no collateral, and the agreement is documented by an indenture.

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公司债券无抵押债务，只依赖借方信用质量作为支持，并无抵押品，协议属于契约形式。

Debenture an unsecured debt backed only by the credit worthiness of the borrower. There is no collateral, and the agreement is documented by an indenture.

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