在一些国家，已婚夫妇被联合征税。

In some countries, married couples are ___taxed jointly.

环境污染物通常被征税以阻止有害行为。

Environmental polluters are often ___taxed to discourage harmful practices.

市议会计划对空置房产征税以增加收入。

The city council plans to ___tax vacant properties to generate revenue.