由于个体的思维和能力存在局限性，并非所有与解决问题有关的经验和知识都可以单靠个人努力获得。
Not all experience and knowledge related to problem-solving can be obtained by personal effort alone due to limitations of mind and capabilities of each individual.
囿于时代的限制，导致设计人的自身经验和知识有其局限性，因此基本常识也可以发挥作用：很大程度上，损坏通常是由于不同形式的降水造成的。
Next to one's own experience and knowledge of deficiencies typical of the era common sense can also be useful: to a large degree damages are brought about by the different forms of precipitation.
由于用户知识领域的局限性，传统的论文管理系统无法为用户提供全面而高效的关键字查询。
Traditional paper management system can't provide users with the comprehensive and efficient keyword query because of the users knowledge limitation.
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