To gain extensive life experience and wisdom by enduring hardships and encountering various situations; to be seasoned by life's challenges.
他从小就跟着长辈们走南闯北，经风雨，见世面，所以年纪轻轻就十分成熟。
He followed his elders traveling extensively from a young age, experiencing many challenges and seeing the world, which made him very mature despite his youth.
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