只有经理有权签署费用报销单。

Only managers ___are ___authorized ___to sign expense forms.

作为俱乐部秘书，我受权代表会员发言。

As the club secretary, I ___am ___authorized ___to speak on behalf of the members.

新法律规定，安保人员有权暂时拘留嫌疑人。

The new law states that security personnel ___are ___authorized ___to detain suspects temporarily.