这样在项目生存周期的后期，时间越来越紧迫，你意识到已经不可能满足所有的需求时，至少你还知道哪些是最重要的。
Then later in the project lifecycle, when time is getting short and you realize you cannot meet every requirement, at least you will know which ones are most important.
作为一种科学管理方法，项目管理特别适用于那些责任重大、关系复杂、时间紧迫、资源有限的一次性任务。
As a scientific method for management, Project management is competent for one-off tasks which have weighty responsibilities, complicated relations, pressing time limit, and limited resources.
作为一种科学管理方法，项目管理特别适用于那些责任重大、关系复杂、时间紧迫、资源有限的一次性任务。
As a scientific method for management, Project management is competent for one-off tasks which have weighty responsibilities, complicated relations, pressing time limit, and limited resources.
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