The better the diagnostics, the less chance of the operator missing an error message and continuing with a broken keyring.

诊断性能越好，操作员错过一条错误信息并继续使用一个错误的密匙环的机会就越少。

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If, for whatever reason, something goes wrong in spite of all preparations, you still have a good chance of fixing the error.

如果，处于某种原因，尽管您尽一切努力去避免错误的发生，还是会有一些错误发生，那么您仍然有修复错误很好的机会。

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Database validation is the last chance to catch errors, but a good application has already validated the data at that point (and error messages from the database engine are anything but readable).

数据库验证是捕获错误的最后机会，但是好的应用程序应该事先检验数据(数据库引擎的错误消息可不是易读的)。

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