As he began his speech, a heckler called out asking for his opinion on gun control.他刚开始演讲，一名诘难者就大声质问他对枪械管制的看法。The offending comment was in fact a heckle from an audience member.这番冒犯性的言论实际上是一名观众的诘难。This congressman is clever at making scores off hecklers at public meetings.这位国会议员擅长在公众集会上驳倒诘难者。