政府正在打击政治极端分子。

The government is cracking down on political ___extremists.

鉴于所有这些严格的规则，孩子们可能长大后成为无政府主义的极端分子。

With all the strict rules, children might grow up to be anarchic ___extremists.

他的观点如此激进，以至于他经常被称为极端分子。

His views are so radical that he is often called an ___extremist.