Nián / qīng / shí / de / tā / fàng / dàng / bù / jī / cháng / cháng / yí / gè / rén / dào / chù / lǚ / xíng。

年轻时的他放荡不羁，常常一个人到处旅行。

In his youth, he was wild and unrestrained and often traveled alone.