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1·Lessons learned from the past can guide one in the future.

前事不忘，后事之师。《新英汉大辞典》

2·The lessons learned at the cost of blood helped to sober us.

血的教训使我们的头脑清醒了。《新英汉大辞典》

3·Best practices and lessons learned.

最佳实践及获得的经验教训。

4·Life Lessons Learned by Age 26.

26岁时要学会的人生26课。

5·Best practices used and lessons learned.

所用的最佳实践及获得的经验教训。

6·Step 9: Document estimate and lessons learned

步骤九：记录评估和吸取教训

7·I tried to capture lessons learned in my essays.

我努力地在文中捕捉那些学到地经验。

8·Keep a notebook or journal of lessons learned.

把经验和教训记录到日记或笔记中。

9·Lessons learned: Preventing globalization problems.

得到的教训：防止全球化问题。

10·Winners live life now based on lessons learned in the past.

成功者吸取过去的经验教训，活在当下。