网络优化工作是一项技术含量较高的日常维护工作，要求优化人员不仅有精深的理论知识，还需要丰富的网络维护实践经验。
Network optimization is a high-tech the daily maintenance, optimization of personnel required theoretical knowledge is not only deep, but also rich practical experience in network maintenance.
在这个沟通和信息过载的广袤世界里，我们需要优秀的翻译家，他们不仅需要掌握理论知识，还应具备良好的实践技能。
So in this vast world of communication and information overload, we need competent translators who have both the theoretical knowledge and practical skills to do their jobs well.
为了确定故障原因，不仅需要丰富的理论知识和实践经验，而且还必须掌握一定的方法。
In order to determine the cause of the malfunctions, not only needed to have rich theoretical knowledge and practical experience, but also needed to have a certain practical method.
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