Nabhan was believed to be a central operative for the global terrorist group al-Qaida.

VOA: standard.2009.09.16

It's as if the distinction between John Milton and the speaker of Lycidas wasn't really operative.

似乎弥尔顿和的演说人之间的区分,并不是那么重要的。

耶鲁公开课 - 弥尔顿课程节选

That's how operative conditioning works.

这就是操作性条件反射。

耶鲁公开课 - 心理学导论课程节选

Heavy mortar exchanges have since erupted in the Bakara market area of Mogadishu, A spokesman for the al Shabab terrorist group claimed the suicide attack was in retaliation for the killing of a wanted senior al-Qaida operative in the region.

VOA: standard.2009.09.17