rú / guǒ / wǒ / men / bù / xī / qǔ / jiào / xùn / lì / shǐ / chóng / yǎn / zhǐ / shì / shí / jiān / wèn / tí

如果我们不吸取教训，历史重演只是时间问题。

If we do not learn from our mistakes, it is only a matter of time before history repeats itself.