zài / tèshū / shíqī / cháotíng / céngjīng / chíjìn / ràng / biānjìng / màoyì / zhúbù / huīfù

在特殊时期，朝廷曾经弛禁，让边境贸易逐步恢复。

During a special period, the imperial court once relaxed the ban, allowing border trade to gradually resume.