所有这一切让我感到，北京的生活并不是有礼貌的，但我知道这并不正确。

All this contributes to the sense that life in Beijing is less genteel, but that is not accurate.

youdao

这颇让人鼓舞，但我知道这仍不够，所以我就开始申请奖学金，可接二连三地遭到拒绝，这有时让我颇感沮丧。

This was encouraging, but I knew that I would also need some help, so began the process of applying for scholarships. Sometimes it was discouraging because I was rejected again and again.

youdao

我知道维基不喜欢这工作，但我也许并不觉得它很差。

I know Vicky doesn't like the job, but I mightn't find it too bad.

《牛津词典》

And I know it is only the third quiz, but I like to keep the quiz number the same as the homework number.

我知道这只是第三次小测，但我喜欢将小测题数保持不变,就像家庭作业题一样。

麻省理工公开课 - 固态化学导论课程节选

I don't know if that's true of you, but it certainly is true of people of my generation.

我不知道你们是不是也这样,但对于我们这代人来说确实如此

耶鲁公开课 - 古希腊历史简介课程节选

I know table salt is white, but that is because you have power and you have multiple surfaces scattering, but a large crystal of sodium chloride is clear and colorless.

我知道食用盐是白色的，但这是因为你让它成了粉末,因为有了多个散射面，但是一个大的氯化钠晶体,是无色透明的。

麻省理工公开课 - 固态化学导论课程节选