英语词汇“正负”的释义、用法及例句-英汉例句词典

词汇	正负
例句	A battery has both a positive pole and a negative pole.电池有正负两极。
随便看	observation observational observation deck observation platform observation post observations Observatory observatory observe observed observe on Observer observer observers observer status observes observing obsess obsessed obsessed with obsessing obsession obsessional obsessionally obsessive

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