pertinacious GRE

1.Questions buzzed in his head like pertinacious bees.

一连串问题在他脑子里盘旋着，就象纠缠不休蜜蜂。

2.She is the most vocal and pertinacious of all the critics of the policy.

在所有政策批评家中，她是陈词最多而且最为执。