These disasters bring great painful lessons.

这些灾害给他们带来了沉痛的教训。

youdao

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。

youdao

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。

youdao

Both oil producers and miners recall painful lessons of previous decades when low prices were the norm.

ECONOMIST: The bugs are back | The

Banks are highly regulated and have learned some painful lessons over the years.

FORBES: What To Do When Banks Won't Lend to Your Small Business

One of the more painful lessons all investors learn is that a 20%-40% loser in your portfolio can offset the nice gains from the other holdings.

FORBES: 3 Big Banks That Aren't Cheap Enough