n.(毫无想象力的)笨蛋，蠢人

原形：dullard复数：dullards

He's such a dullard, he couldn't even understand a simple joke.
他真是个蠢材，连简单的笑话都听不懂。
The teacher sighed, knowing her explanation would fall on deaf ears of the dullard in the back row.
老师叹了口气，知道后排那个愚钝的学生根本听不进她的讲解。
His dullard behavior often made the classroom atmosphere lackluster.
他的愚笨举止常常让课堂气氛沉闷无趣。
She tried to engage him in conversation, but his dullard responses left her frustrated.
她试图和他交谈，但他的迟钝回答让她感到沮丧。
Don't waste your time trying to educate a true dullard; they'll never grasp the concept.
别白费力气去教育一个真正的愚钝之人，他们永远无法理解这个概念。
The dullard's constant mistakes during the experiment led to inaccurate results.
实验中那个愚钝者的不断错误导致了结果的偏差。
Her patience was wearing thin with the dullard who couldn't seem to grasp the simplest concepts.
对于那些无法理解最基本概念的愚钝者，她越来越失去耐心。
The dullard's monotonous speech had everyone yawning at the meeting.
那个愚钝的人单调乏味的发言使会议上的人都昏昏欲睡。
Despite being surrounded by brilliant minds, the dullard's ignorance was glaringly obvious.
尽管身处一群聪明人之中，那个愚钝者的无知还是显而易见。
It's frustrating to work with a dullard who always misses the point and requires constant reminders.
和一个总是抓不住重点、需要不断提醒的愚钝者共事真令人沮丧。