通常，问题的原因只是简单的由于缺少培训和反馈。

Often, the issue is simply a lack of training or feedback.

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最后，一个反馈环节被加入培训项目。

Finally, a feedback loop was incorporated into the training program.

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最后，一个反馈环节被加入培训项目。

Finally, a feedback loop was incorporated into the training program.

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