I even if not happy also is at most a lesson.

我就算不开心也最多是一节课而已。

youdao

And to me, that is the greatest lesson of life. To be happy, you have to give something back.

对我而言，这是生命中最重要的教训，要想快乐，你必须要给予，要回馈。

youdao

Boys and girls, How are you today? May you have a happy English lesson.

大家好，今天心情好吗?希望大家能愉快的度过今天的英语课。

youdao

Now if you can just persuade the English and Portsmouth soccer players of this lesson, I'd be very happy.

现在如果你能让英格兰或者朴茨茅斯球员,学会这个规律的话,我会非常高兴的

耶鲁公开课 - 博弈论课程节选

She seemed more interested in tips on good restaurants than guidance on tennis but also seemed happy with the lesson.

WSJ: The hard reality of teaching tennis

In that time, a teacher can fix a shank or get somebody to slice the ball less, and everyone leaves the lesson happy.

WSJ: The Wrong Way to Practice Golf | Golf Journal by John Paul Newport

Mr Kujau was proud of his skill and, in later life, was always happy to give a quick lesson on forgery to reporters.

ECONOMIST: Konrad Kujau