What I only know about morality is something you find good after but bad about immorality.

我只知道所谓道德是指你事后觉得好的东西，所谓不道德是指你事后觉得不好的东西。

youdao

I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.

我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。

youdao

I know it's bandied about, but I think it's only a rumour.

我知道这事到处乱传，不过我想这只是谣言。

《新英汉大辞典》

I only give, I don't know, about 10% or 20% for getting the right number in a computation. I tell my graders, if the student demonstrates minimal acceptable proficiency that student has to get a passing score.

我只是给，我不知道，10%或者20%的随机概率得到合适的数字,我告诉我的学生们，如果有人想证明,最小可接受的熟练,就是学生们得到一个及格的分数。

麻省理工公开课 - 固态化学导论课程节选

I think the more we think about it, the more we realize that we only know what it is if we know the system that it belongs to, which is to say, all of the things related to it which it is not. Right?

你们越仔细想这一点，就越明白，我们只有知道事物所属的符号系统,才能认识事物，所有事物都是和同一符号系统中的反面相关的？

耶鲁公开课 - 文学理论导论课程节选

stdio c So somewhere there's standard IO dot C, stdio h somewhere they're standard IO dot H, but, for me, right now, the only file I need to know about is the dot H, -- because what Sharp include really does -- it's what's called a preprocessor directive.

所以某个地方有一个，现在对于我来说它们是，我只要知道那个，h文件，因为Sharp包含的-,叫做预处理指令。

哈佛公开课 - 计算机科学课程节选

The only reason I know about this is due to the efforts of one woman, the extraordinary Chris Conder.

BBC: DIY fibre broadband

Thank you for your article, Joanna, I'm happy to know I'm not the only 30 year old thinking about this.

BBC: Baby decisions - adding to the world's woes?

Mr. MUTLAQ: I believe that, you know, they cannot spend two days only talking about the election.

NPR: Infighting Marks Sunni Political Efforts in Iraq