发挥作用英语怎么说

发挥作用英语怎么说：play a role, have an effect, make a difference

例句：

1. His leadership skills played a crucial role in the success of the project. (他的领导技能在项目成功中发挥了至关重要的作用。)

2. The new policy has had a positive effect on the company's profits. (新政策对公司的利润产生了积极的影响。)

3. Your hard work and dedication will make a difference in the lives of those you help. (你的努力和奉献将会对你所帮助的人的生活产生影响。)

4. The new technology has played a significant role in improving the efficiency of the manufacturing process. (新技术在提高制造过程的效率方面发挥了重要作用。)

5. Her positive attitude and encouragement have had a great effect on the team's morale. (她积极的态度和鼓励对团队的士气产生了巨大的影响。)