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1·These disasters bring great painful lessons.

这些灾害给他们带来了沉痛的教训。

2·We must remember these painful lessons paid for in blood.

我们要牢记这些惨痛的血的教训。

3·Thankfully we seem to be learning from those painful lessons of the past.

谢天谢地，我们似乎从过去这些沉痛的教训中吸取了经验。

4·Lucky for you, there are several major areas in which we've learned some very painful lessons.

我们从几个重大的领域吸取了一些非常惨痛的教训，这对与您而言无疑是幸运的。

5·I had let my father down, and I was about to learn one of the most painful lessons of my life.

是我让父亲失望了，因此接下来我将接受有生以来最刻骨铭心的教训。

6·Understand that painful lessons you learn in life are actually rewards you get paid in the end.

也要明白在生活中学到的一些痛苦教训最终将是你人生中的一笔财富。

7·Not one, but two conference sessions were entirely devoted to the painful lessons of that catastrophe.

然而，随着福岛核事故的噩梦袭来，这场复兴戛然而止。 夏季会议中有两场小组会议（而非一场）都专门用来讨论这场浩劫的惨痛教训。

8·In at least one area, liquidity management, many investors learned painful lessons from the crisis.

至少在一个地区，有关流动性管理，许多投资者从危机中吸取了惨痛的教训。

9·We should be learned from abroad in the painful lessons, timely adjustment of strategies and research methods, as little as possible detours.

我们应该从国外的惨痛教训中吸取经验，及时调整策略和研究方法，尽量少走弯路。

10·The tragic history of colonial people, the endless conflict between major powers, especially the two world wars, have left painful lessons in the history of mankind.

殖民地人民的悲惨历史，大国间连绵不断的冲突，特别是两次世界大战，都给人类留下了沉痛的历史教训。