名词
中文翻译：非表现者
同义词：
['failure', 'non-achiever']
例句：
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1.The team's performance was disappointingly low.
团队的表现令人失望地低。
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2.He is a non-performer in mathematics.
他在数学上是个不及格者。
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3. Many students are struggling with the course material, making it a non-performer for many.
许多学生对课程内容感到困难，这使得许多学生在很多情况下都表现不佳。