The row key is the primary key of the table and is typically a string.

行键是表的主键，通常是一个字符串。

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Second, fasten a key to the end of the long string.

第二，将长绳的尾端系上一把钥匙。

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Second, fasten a key to the end of the long string.

第二，将长绳的尾端系上一把钥匙。

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