Overseas investment has had a positive effect on exports.

海外投资对出口有积极影响。

《牛津词典》

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

和姐姐的分开对约翰有积极的影响。

《柯林斯英汉双解大词典》

If this had a positive effect on our health this of course would be no problem.

如果这对我们的健康有一个积极的影响，这当然没有问题。

youdao

Most politicians in Lincolnshire believe that migrant workers have had a positive effect on the county's economy.

BBC: Cameron says British workers should replace EU migrants

Shameful though it may be, official stonewalling has had a positive effect: a burst of people power.

CNN: Warning -- this garbage is dangerous

In its introduction the prince said he was "encouraged" that the work of the trust had had a positive effect on young people's lives.

BBC: NEWS | UK | Jobless young 'need more support'