But no rational person can doubt that these substances can also be used responsibly and constructively; just study Steve Jobs' life if you doubt that.

但是没有任何一位理性的人怀疑这些物质同样也可以被负责地、积极地使用；如果你怀疑的话，那就研究史蒂夫·乔布斯吧。

youdao

So we even doubt the rational truths we think we know.

于是我们甚至怀疑那些我们认为自己已经知晓的真理。

youdao

The construction of rational method of doubt is of great importance to reforming human being's faith and rebuilding spirit home, especially, in the transformation of our society.

合理怀疑方法建构对我国社会转型时期人们的信仰重铸及精神家园的重建具有深远的意义。

youdao

The best is no doubt the call for a cool-headed approach, a rational debate and the opening of negotiations with Britain's partners.

BBC: EU viewpoints on Cameron's Europe speech