关健

例句：

1. 1. The success of the project depends on the key factor of time management.
   项目的成败取决于时间管理这一关键因素。
2. 2. The company's survival is crucial to its long-term development.
   公司的存续对其长期发展至关重要。
3. 3. The outcome of the meeting will depend on the key points discussed.
   会议的结果将取决于讨论的要点。