以下为句子列表：
英文: After regulation, turn the burner off and on again several tomes to check that ignition occurs correctly.
中文: 调节后，关闭燃烧器然后再启动多次检查点火的正确性。
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英文: B: Off and on for the past six years.
中文: 过去这六年断断续续住在那里。
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英文: Flight controllers applied electrical current to the recorder, on and off and on again, repeatedly, until the molecular structure was altered enough to unstick the recorder for transmitting data.
中文: 飞行控制器应用了电流将记录机反复地打开关上，直至分子结构改变才使磁带与记录机分开。
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英文: He comes here off and on to see my father.
中文: 他偶尔会到这里看看我父亲。
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英文: He has been writing to us off and on for several years.
中文: 他断断续续地给我们写信已经有好几年了。
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