a lesson learned的意思|示意

But I think that if there is a lesson to be learned in this article, it's that we really need to take the time to analyze how we're spending the bulk of our waking time.

但是我认为，如果在这篇文章里要学到什么的话，那就是——我们的确需要花时间来分析为什么我们要浪费这么多时间。

He completed His process in me and I learned a lasting lesson.

他的课上完了，而我学会了终生受益的一课。

I think the soft drink company learned a valuable lesson from its Bryant experience: don't kick a popular sports star when he's down unless you know for sure he is really out.

也许可口可乐饮料公司已经从科比身上吸取了宝贵的教训：人气体育明星就算摔倒了也不要立即抛弃他，除非你确信他真的出局了。

You might have thought that Cadillac would have learned a lesson from its marketing victory over Packard, but apparently not.

你也许会认为，凯迪拉克能够从与柏加的市场竞争胜利中学到些什么，但显然没有。

He learned a lesson at the cost of blood.

他以血的代价吸取了教训。

That was a lesson we learned very early on.

这是我们很早就受到的教训。