四合院(siheyuan)是中国一种传统的住宅建筑，其特点是房屋建造在一个院子的四周,

将院子合围在中间。四合院通常冬暖夏凉,环境舒适，尤其适合大家庭居住。四合院在中国各地有多种类型，其中以北京的四合院最为典型。如今，随着现代城市的发展，传统的四合院已逐渐减少，但因其独特的建筑风格，四合院对中国文化的传承和中国历史的研究具有重要意义。

参考译文（二）

Siheyuan is a Traditional Chinese residential building, Its characteristic is that the house is built around a courtyard, enclosing the courtyard in the middle. siheyuan usually warm in winter and cool in summer, comfortable environment, especially suitable for large families. There are many types of siheyuan in China, among which the siheyuan in Beijing is the most typical. Today, with the development of modern cities, the traditional quadrangles have been gradually reduced, but because of its unique architectural style, siheyuan is of great significance to the inheritance of Chinese culture and the study of Chinese history.