形容词
中文翻译：次标准的
同义词：
['subpar', 'suboptimal', 'inferior']
例句：
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1.The product was substandard, causing significant damage to the machine.
产品不达标，导致机器严重损坏。
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2. The company's quality control standards are substandard compared to industry norms.
该公司的质量标准低于行业标准。
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3.The substandard performance of the team is a cause for concern.
团队表现不佳令人担忧。