howler的复数形式怎么写

howler的音标：howler的英式发音音标为：['haʊlə(r)]howler的美式发音音标为：['haʊlɚ]...

I felt as if I had made an outrageous howler.我觉得自己似乎犯了个不可容忍的低级错误。The car came a howler on the road.车在途中出了事故.When Errol flies away after delivering the howler his wing hits Hermione's head.埃罗尔送完吼叫信飞走时,它的翅膀打到了赫敏的头....

n.（尤指言谈或行文中的）愚蠢的错误...