了解比演讲涉及内容更广泛的知识。
这些讲座涉及的内容极为广泛。
内容涉及面广泛，常见和非常见业务兼有。
Content involve extensive, common and very saw both the business.
这次讨论涉及广泛内容。
网络数据库的安全机制涉及的内容十分广泛。
The security mechanism of network database is related with many aspects.
网络数据库的安全机制涉及的内容十分广泛。
The security mechanism of network database is related with many aspects.
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