Amazon SimpleDB (SDB) provides scalable, indexed, zero-maintenance storage, along with processing and querying for datasets.

Amazon SimpleDB (SDB)提供可伸缩、包含索引且无需维护的数据集存储，以及处理和查询功能。

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The elements of a color matrix are indexed (zero-based) by row and then column.

色彩矩阵的元素是根据先列后行的顺序来编列索引 （以零起始）。

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Accordingly, a private replacement for Social Security would have to take the form of a fully-inflation-indexed annuity with zero risk of default.

FORBES: Why Americans Are Skeptical About Private Social Security Accounts