This process is a complex and systematic project.
这是一项复杂的系统工程。
Land reclamation is a complex and systematic project.
土地复垦是一个复杂的系统工程。
Road traffic project management is a complex and systematic project involving a number of factors.
公路工程项目管理是一项复杂的系统工程，涉及到诸多要素。
Road traffic project management is a complex and systematic project involving a number of factors.
公路工程项目管理是一项复杂的系统工程，涉及到诸多要素。
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