n.学习成绩不良，成绩低劣

Despite his high IQ, John's constant underachievement in school has been a source of frustration for his parents.
尽管约翰的智商很高，但他在学校里持续的低成就让他的父母感到沮丧。
The team's underachievement this season can be attributed to poor leadership and lack of team cohesion.
本赛季球队的表现不佳可以归咎于领导不力和团队凝聚力的缺乏。
The report highlights the issue of underachievement among minority students and suggests strategies for improvement.
报告突出了少数族裔学生中成绩不佳的问题，并提出了解决策略。
Sarah's chronic underachievement in math might be due to her learning difficulties rather than a lack of effort.
萨拉在数学上长期表现不佳可能是由于学习障碍，而不是努力不足。
The government has launched a new program aimed at addressing underachievement in rural schools.
政府启动了一项新计划，旨在解决农村学校的成绩不佳问题。
Underachievement in sports, despite rigorous training, can sometimes be a result of mental blocks or lack of confidence.
尽管经过严格训练，体育上的成绩不佳有时可能是心理障碍或自信心缺乏的结果。
The film, though highly anticipated, turned out to be an underachievement both critically and commercially.
这部电影虽然备受期待，但最终在评论界和商业上都表现不佳。
The teacher organized extra tutoring sessions to help students overcome their patterns of underachievement.
老师组织了额外的辅导课程，以帮助学生克服成绩不佳的状况。
Researchers found a correlation between underachievement in reading and a lack of access to quality literature at home.
研究人员发现，阅读成绩不佳与家中缺乏优质文学资源有关联。
The once-promising startup's underachievement led to significant layoffs and eventually, its acquisition by a rival company.
这家一度充满希望的初创公司的表现不佳导致了大规模裁员，最终被竞争对手公司收购。