Double check that the database on the primary machine has the proper role.

仔细检查主要计算机上的数据库是否具有正确的角色。

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Double bowline is used by many climbers as their primary knot.

双布林结通常是攀登者最初使用的绳结。

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Double bowline is used by many climbers as their primary knot.

双布林结通常是攀登者最初使用的绳结。

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