一些科学研究已经对吃冰激凌可能产生积极影响的原因进行了探究。

There has already been some scientific research into why ice cream may have a positive effect on those who eat it.

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沃克也产生了积极影响，对勒布朗的篮球。

Walker also had a positive impact on Lebron's basketball.

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对…产生积极影响。

Reference: have a positive impact on...

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对…产生积极影响。

Reference: have a positive impact on...

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