《梁书·本纪·卷五》
往昔束周已经迁都雒邑，镐京于是不再为都城；长安一乱，郏、洛就永远成为帝王的居所。
昔东周既迁，镐京遂其不复；长安一乱，郏、洛永以为居。
In the past, the Zhou Kingdom moved its capital to Luoyi, thus Haojing was no longer the capital; after the chaos in Chang'an, Jia and Luo forever became the residences of emperors.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 往昔束周已经迁都雒邑，镐京于是不再为都城；长安一乱，郏、洛就永远成为帝王的居所。 [/INST] 昔东周既迁，镐京遂其不复；长安一乱，郏、洛永以为居。</s>
Convert the following modern Chinese text into Classical Chinese: 往昔束周已经迁都雒邑，镐京于是不再为都城；长安一乱，郏、洛就永远成为帝王的居所。
user
昔东周既迁，镐京遂其不复；长安一乱，郏、洛永以为居。
assistant