形容词
中文翻译：Unknown
同义词：
['outdated', 'obsolete', 'outdated', 'obsolete']
例句：
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1. The old model is no longer suitable for the new technology.
旧模型不适合新技术。
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2. The design of this product is obsolete compared to its competitors.
该产品的设计与竞争对手相比已过时。
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3. The company's old methods are now considered obsolete by many experts.
该公司的老方法现在被许多专家视为过时。