人们认为这些新闻报道不过是为了宣传，不可全信。
你自幼学的那些知识，观念，思想也要过滤澄清，不可全信。
The concepts and thoughts that you have learned from childhood should be clarified. You can't believe all of them.
也有消息称阿司匹林还可预防某些癌症，但大多都是基于观测研究得来的，不可全信。
There were also hints that aspirin may help prevent some cancers. But these were mostly based on observational studies, which can be misleading.
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