形容词
中文翻译：无功能的
同义词：
['nonfunctional', 'ineffective', 'useless']
例句：
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1. The new software is afunctional and needs to be updated.
新软件功能失效，需要更新。
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2. The olddesign was afunctional and had tobe replaced.
旧设计功能失效，必须被替换。
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3. The machine's controls areafunctional and need to be fixed.
机器的控制部分功能失效，需要修理。