effective driving force

例句：

1. 1. The new policy is designed to improve the effectiveness of our marketing strategy.
   新政策旨在提高我们营销策略的有效性。
2. 2.The team's performance was greatly enhanced by the effective driving force of their leader.
   团队的表现因领导者的有效驱动力而大大提升。
3. 3.The project's success can be attributed to the effective driving force of its management team.
   该项目的成功可以归功于其管理团队的有效驱动力。