The primary challenge of project management is to achieve all of the project goals[4] and objectives while honoring the preconceived constraints.[5] Typical constraints are scope, time, and budget.[1] The secondary—and more ambitious—challenge is to optimize the allocation and integrate the inputs n的翻译：什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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项目管理的主要挑战是实现所有项目的目标[4]和目标，同时履行先入为主的约束。[5]典型的约束范围，时间和预算。[1]的二级和更加雄心勃勃的挑战是优化配置和整合所需的投入，以满足预先定义的%