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1·And the law aside we felt an enormous moral and ethical obligation to use the material responsibly.

除此之外，我觉得作为媒体人，我们内心的道德准则要求我们对所用的材料负责。

2·Companies have an ethical obligation to identify both positive and negative impacts and the necessary measures are taken to enhance those and minimize the latter.

公司具有识别正面和负面的影响，并采取必要措施提高和降低后者的道德责任。

3·We conclude that when presented with a request for private banking, obstetricians have an ethical obligation to explain the lack of proven benefit of this procedure.

我们的结论是，当患者提出私营脐血库的请求时，产科医生有道德义务解释，该程序缺乏已证实的益处。