This is the 727th most frequent Korean word.
시스템을
The word "시스템을" means "system" in English, with the object particle "-을" attached.
Here, '시스템을' is used as the object of the verb '업그레이드하다' (to upgrade), indicating the system being upgraded.
우리는 시스템을 업그레이드해야 합니다.
We need to upgrade the system.
In this sentence, '시스템을' functions as the object of '운영하다' (to operate/execute), highlighting the importance of planning for system operation.
시스템을 효과적으로 운영하기 위해 우리는 계획이 필요합니다.
We need a plan to operate the system effectively.
Here, '시스템을' is used as part of '시스템을 중심으로' (focusing on the system), showing that the system is the central element addressed in the strategy.