名词
中文翻译：琐碎的平均数
同义词：
['trivial averages', 'pettiness averages']
例句：
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1.She was upset because her petty averages were lower than her friends'.
她因为自己的琐碎平均数比朋友的低而感到沮丧。
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2. The school district has been criticized for its petty averages and low test scores.
该学区因其琐碎的平均数和低测试成绩而受到批评。
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3. He was surprised when he heard that the team had a petty average of 85 points.
当他听说球队的琐碎平均分是85分时，他感到很惊讶。