名词
中文翻译：第一代
同义词：
['primary', 'initial', 'pioneer']
例句：
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1.The first-generation smartphones have significantly improved in performance and battery life.
第一代智能手机在性能和电池寿命方面有显著提升。
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2.The first-generation iPad was a huge success, but the second-generation model has been even better.
第一代iPad非常成功，但第二代模型更胜一筹。
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3.The first-generation of the new car is already outselling the second generation by a wide margin.
这款新车的第一代销量已经超过了第二代车型。