骑士服务欧洲封建制度下为获土地而服的兵役以服兵役为条件获得的对土地的占有权
The military service performed by knights under the European feudal system to obtain land was the right to possess land obtained on the condition of military service
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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