他们到这时为止的经历为他提供了许多值得反省的教训.Their journey thus far had provided him with much food for reflection.江西红军到这时为止的经历为他们提供了许多值得反省的教训.The journey of the Kiangsi Reds thus far had provided them with much food for reflection.因此,[何谓艺术...

“反省的”的英语可以翻译为：introspective ...