1. A right-wing extremist group had established a compound in the mountains of north Arkansas. 有一个右翼极端组织在阿肯色州北部山区建立了一个基地。
2. Iraqi security forces need to continue to grow and improve and take the fight to al Qaeda and other extremist groups. 伊拉克安全部队需要继续增长和改进和采取战斗对阿尔-凯达和其它极端小组。
3. Iranian agents are in our custody, and we are learning more about how Iran has supported extremist groups with training and lethal aid. 伊朗代理是在我们的监管，并且我们学会更多关于怎样伊朗支持了极端小组以训练和致死的助手。
英英解释
n.
1. a person who holds extreme views
2. (used of opinions and actions) far beyond the norm
