形容词
中文翻译：次标准的
同义词：
['non-standard', 'subpar例句：1. The substandard quality of the product has caused a lot of complaints.（产品质量不合格，引起了很多投诉。）']
例句：
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1. The substandard quality of the product has caused a lot of complaints.
产品质量不合格，引起了很多投诉。
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2. The substandard work was not up to the standard set by the company.
工作质量不达标，不符合公司设定的标准。
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3. The substandard facilities were not suitable for the needs of the students.
设施不达标，不适合学生的需求。