房屋

In a sentence

• 这座房屋是我的祖父建的。

  This house was built by my grandfather.

  Here, '房屋' is used to refer to a specific construction meant for living.

• 在城市的外围，有许多现代化的房屋。

  In the outskirts of the city, there are many modern houses.

  In this context, '房屋' denotes various houses as a general category.

• 为了避免损坏房屋，我们需要修理屋顶。

  To avoid damaging the house, we need to repair the roof.

  Here, '房屋' specifies the building structure that is being protected.