她的政策可能对经济产生不利影响。

Her policies may have ___adverse ___effects on the economy.

有些人对感冒药有不良反应。

Some people have had ___adverse ___reactions to cold medicines.

然而，我们应该记住旅游业可能对当地环境产生不利影响。

However, we should bear in mind that tourism could have an ___adverse ___effect on the local environment.