形容词
中文翻译：Unknown
同义词：
['deficient', 'faulty', 'imperfect']
例句：
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1.The car's engine is defective and needs to be repaired immediately.
这辆车的引擎有缺陷，需要立即修理。
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2.The software was found to be defective after testing.
在测试后发现软件有缺陷。
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3.He was disappointed with the quality of the product, which was considered defective by the manufacturer.
他对产品的质量感到失望，制造商认为该产品有缺陷。