这栋建筑的墙是用加固的混凝土砌块砌成的，非常坚固。

The walls of this building are made of reinforced ___blockwork, making them very strong.

这面墙是用混凝土块砌成的，展示了精湛的砌块工艺。

This wall is built with concrete blocks, showcasing excellent ___blockwork techniques.