媒体对公众舆论有着巨大的影响力。

The media ___wields significant influence over public opinion.

在一些公司里，一小群高管拥有不成比例的过大权力。

In some companies, a small group of executives ___wields disproportionate power.

作为社区领袖，她在当地事务中行使着相当大的权力。

As a community leader, she ___wields considerable authority in local affairs.