2017年大学英语四级翻译试题库：安西都护府
来源 :中华考试网 2017-12-15
中请将下面这段话翻译成英文：
安西都护府
安西都护府是唐朝管理碛西的一个军政机构，其统辖安西四镇，最大管辖范围曾一度完全包括天山南北，并至葱岭以西至达波斯，在武周时代北庭都护府分立之后，安西都护府分管天山以南的西域地区。龙朔二年之后，吐蕃和唐朝反复争夺安西四镇，唐朝也两次放弃安西四镇，导致此处多次易手，直到唐德宗贞元六年，安西四镇相继完全陷落。
参考译文
Anxi Frontier Command
Anxi Frontier Command was the military and political authority for the royal court of the Tang Dynasty to govern Zexi. Anxi Frontier Command exercised control over the four towns of Anxi, with its maximum scope ever covering the whole areas in the Tianshan Mountain and extending to Posia west of Congling. After the division of the frontier command of the northern court in the Wu Zhou Period, Anxi Frontier Command, as a branch frontier command, governed the west regions in the south of the Tianshan Mountain. After the second year of Longshuo, Tibet and the Tang Dynasty repeatedly fought for the four townships of Anxi County, which were abandoned by the Tang Dynasty twice. With many changes of government, the four towns of Anxi were seized successively till the sixth year of Emperor Dezong of Tang.