Definition
To maintain strict and careful control over something or someone.
牢牢掌控
The manager must keep a firm hand on the project's budget to ensure it does not go over the limit.
經理必須嚴格控制項目的預算，以確保不會超出限制。
The coach keeps a firm hand on the team's training schedule to ensure that every player performs at their best.
教練嚴格控制球隊的訓練時間表，以確保每位球員都能發揮最佳表現。
The teacher keeps a firm hand on her students to ensure classroom discipline.
老師嚴格管控她的學生，以確保課堂紀律。