The licensee did not know or have reason to know of the condition and the risk involved.

被许可人不知道或没理由知道这种危险的情况。

youdao

What is remarkable here is not the errors of the young people on the video, many of whom probably have no reason to know any better about the nature of rights.

需要引起注意的，并不是视频中年轻人所犯的错误，而是我们很多人也许都没有很理性地过自然权利进行思考。

youdao

I suppose the reason is that we know all the circumstances that have occasioned them and so manage to excuse in ourselves what we cannot excuse in others.

我想，其原因应该是我们知晓一切导致自己犯错的情况，因此能够设法谅解自己的错误，而别人的错误却不能谅解。

youdao

I can change everything overnight; it does happen. I put that in for a reason because sometimes some of you have not taken a physics course and you don't know how to do well in physics and slowly you catch on and by the time it's Final exam you crack the code; you know how to do well.

我能一夜之间扭转乾坤,确实有过这样的例子,我这样做是因为,有时你们中有人可能以前没上过物理课,不知道怎样学好物理,但慢慢地你赶了上来,到期末考试的时候,你忽然灵光一闪,考起试来得心应手

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