Many large old houses have been converted into flats.

许多大的老房子已改建成单元房。

《牛津词典》

With the expansion of cities, many people sell off their old houses in the countryside and move into new flats in cities.

随着城市扩张，许多人低价出售他们在农村的旧房子，然后搬进城市里的新公寓。

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But behind the brick shopfronts, the houses have been demolished to make room for blocks of flats.

但是在这些用砖块搭建的店面后面，房子都被拆毁，用来建造公寓楼。

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