These disasters bring great painful lessons.

这些灾害给他们带来了沉痛的教训。

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I've been taught some of business's most valuable lessons the hard, painful way.

受过饿挨过冻，得来的是生意场上最宝贵的经验教训。

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I've been taught some of business's most valuable lessons the hard, painful way.

受过饿挨过冻，得来的是生意场上最宝贵的经验教训。

youdao