She's hopelessly headstrong; she always gets up against people in authority. 她刚愎自用到了不可挽救的地步，老是与主管人员发生冲突。
Nobody in authority was available to take advantage of the offer of a reduced price for a bulk order, so I ordered twice our normal requirement on my own initiative. 当时没有负责的人在场能大批订购削价货，因此我主动地订购了比我们正常需要多两倍的货物。
They've (ie The people in authority have) sent us another form to fill in. 上面(负责人)又送来一个表格让我们填写。
Who is in authority (ie holds the position of command) now? 现在谁掌权?
