历史的教训一定要汲取。
虽然如此，但是历史的教训已经非常清楚。
我们应该牢记这些历史的教训。
历史的教训显然很明白。
他们没能吸取历史的教训，使我们感到很失望。
We were disappointed that they could not learn the lesson of history.
不吸取历史的教训，就会导致重演历史错误。
Those who cannot learn from history are doomed to repeat it.
历史的教训总是无情的：等着一次漫长的萧条吧。
研究人员补充道，新的研究既是历史的教训，又是对未来的警示。
The new study is both history lesson and warning, the researchers added.
历史给我们的教训是，人们从来都不知道汲取历史的教训。
History taught us is that people never know learn the lessons of history.
我们可以吸取教训，面对未来，尽管历史是无法改变的。
Lessons can be learned to face the future, though history cannot be changed.
历史带来的教训是什么？
历史中充满着各种人物，事件和对人有益的教训。
History is rich in character, incident, and salutary lesson.
历史上的教训却并非如此。
历史上的教训已经昌明在各大公司的衰败中否定起的作用。
History has lessons to teach about the role of denial in the decline of companies.
上述事实表明，和平来之不易，历史的经验教训值得汲取。
These facts show that peace is hard won and we should draw lessons from history.
人类从历史学到的唯一的教训，就是人类没有从历史中吸取任何教训。
There is only one lesson, from history to human human not learn anything from history.
这个惨痛的历史教训，我们全党同志一定要永远记取，引以为鉴。
No comrade in the Party must ever forget this bitter lesson and we must all take warning from it.
这是多么长的多么深厚多么深刻的血的历史教训啊。
This is how long a how deep how deep the blood of the historical lessons!
这个惨痛的的历史教训，我们全党同志一定要永远记取，引以为戒。
No comrade should never forget the bitter lesson and take a warning from it.
这是一个不遵守社会文明的历史教训。
This is a civilization of a society of non-compliance with the lessons of history.
那些不能够从历史之中吸取教训的人们都是注定要重复历史之中的悲剧的。
Those that fail to learn from history, are doomed to repeat it.
这个历史教训是极为惨痛的。
这个历史教训是极为惨痛的。
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