形容词
中文翻译：无能的
同义词：
['unable', 'incapable', 'intellectually challenged']
例句：
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1. He is considered to be a low-level manager because he lacks the necessary skills and experience.
他被认为是一个低级经理，因为他缺乏必要的技能和经验。
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2. The student was labeled as low-performing due to his poor academic performance.
这个学生因为学习成绩差而被贴上了低效的标签。
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3. The team's performance was considered low-effort due to their lack of enthusiasm and dedication.
由于缺乏热情和奉献精神，团队的表现被认为是低效的。