和姐姐的分开对约翰有积极的影响。

The parting from his sister had a positive effect on John.

《柯林斯英汉双解大词典》

做家庭作业对孩子的个性发展有积极的影响。

Doing homework exerts a positive effect on kids' personality development.

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一项研究表明，生活在有绿色空间的城市地区对人们的心理健康有长期的积极影响。

Living in an urban area with green spaces has a long-lasting positive impact on people's mental well-being, a study has suggested.

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