have a lesson

基本解释

Today we have a lesson in geometry.
今天，我们有一节几何课。
When do you usually(often, always)get(arrive, go)home? It's time to have a lesson for children. Do you want to(would you like to)know about…
你们通常几点到家孩子们到上课时间了你想知道关于我的学习…
It is only when the lesson of that planet is mastered that you may move on and progress spiritually and universally. People with an Anaretic Degree have a lesson to learn.
星宫图上有行星落在不幸的度数的人，必须完成这个课题，才能继续前进获得精神境界的提升。

"It is a lesson to many countries to open up and have far more cultural exchange and make that a priority for diplomacy.
The lesson is, I think, that we have a glamour-city phenomenon-- that excitement about real estate prices-- centered in places like Los Angeles, but it's spreading and becoming more and more of a national phenomenon and that's the bubble.
我想,教训就是,一种"魅力之都"现象,刺激了房地产的繁荣,起始于像洛杉矶这种城市,随后广为扩散,逐渐演变成一种全国性的现象,这就是泡沫
耶鲁公开课 - 金融市场课程节选
On Tuesday,Geithner told Congress that the government must have the authority to seize non-bank entities, arguing that massive destabilizing dangers can come from financial institutions - a lesson learned from the rescue of American International Group,or AIG, a giant insurer that received a $180 billion taxpayer bailout.

Stories like these do have a lesson, even for those without billions of dollars or mistresses.
FORBES: Estate of Richard Pratt, Australian Billionaire, Defeats Mistress In Court