我不会花太多时间追悔过去，一旦吸取了教训，我就不会再陷在里面了。
I don't spend much time, regretting the past, once I've taken my lesson from it. I don't dwell on it.
欧洲的巨头们吸取了教训，认识到一旦一个国家加入进来，他们的影响将大打折扣。
The eurocrats have learnt that, once a country is in, they have less influence on it.
吸取了伊拉克的经验，北约一开始就判断反对派一旦掌权最不想看到的就是被炸毁的民用设施。
Learning from Iraq, NATO decided from the outset that the lastthing the rebels needed when they eventually took power was a civilinfrastructure wrecked by bombing.
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