搜搜做题作业网英语翻译No one knows for sure when advertising first started.It
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英语翻译
No one knows for sure when advertising first started.It is possible that it grew out of the discovery that some people did certain kinds of work better than others did them.That led to the concept of specialization,which means that people would specialize,or focus,on doing one specific job.
请标准翻译,
No one knows for sure when advertising first started.It is possible that it grew out of the discovery that some people did certain kinds of work better than others did them.That led to the concept of specialization,which means that people would specialize,or focus,on doing one specific job.
请标准翻译,
没有人确切地知道当广告开始.它是可能的发现,有些人做某些种类的工作比其他人做的更好.导致专业化的概念,这意味着人们会专业,做一个特定的工作或焦点.
英语翻译（1）No one knows for sure when advertising first started.
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