He derived great satisfaction from knowing that his son was happy.

得知儿子很幸福他深感欣慰。

《牛津词典》

His smile came back, knowing why his daughter quickly took a bite from each apple.

他知道了为什么他的女儿快速地在每个苹果上咬了一口，他的笑容又回来了。

youdao

Now that I am a mentor, I realize what a good feeling you get from helping someone else and knowing that you're making a difference in his or her life.

现在我成为一名导师之后，我才意识到帮助他人、他人的生活因你而改变的感觉是多么美好。

youdao

His two opposing ideas involved seeking happiness from material things, and knowing that material things only brought unhappiness.

VOA: special.2010.11.21

But now that means there is a serious danger here, and in Genesis 3:22, God says, "Now that man has become like one of us, knowing good and evil , what if he should stretch out his hand and take also from the tree of life and eat, and live forever?"

但在那个时候，意味着，他们将面临很大的困难，《创世纪》第3章第22节，上帝说，现在那个人已经变得与我们相似，能知善恶,现在恐怕他又伸手摘生命树的果子,从此以后长生不老“

耶鲁公开课 - 旧约导论课程节选

However, Ipswich appear to be leading the chase, their manager, Roy Keane, knowing McManus from his own short spell as a player at Celtic Park.

BBC: McManus likely to reject Ipswich

He leapt from achievement to achievement, reaching ever higher, knowing his time was short.

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King had admitted concealing criminal property, knowing or believing it was his benefit from criminal conduct, and three charges of misconduct in a public office, at a previous hearing.

BBC: York & North Yorkshire