核心人物

例句：

1. 1. The company's core values are honesty and integrity.
   该公司的核心价值观是诚实和正直。
2. 2. The team's core members were responsible for the project's success.
   团队的核心成员负责该项目的成功。
3. 3. The new policy is aimed at improving the efficiency of the government.
   新政策旨在提高政府的效率。