Gōng / rén / men / yòng / jiān / gù / de / cái / liào / jiā / gù / qiáng / tǐ / shǐ / zhěng / gè / jiàn / zhù / gèng / jiā / qiáng / gù

工人们用坚固的材料加固墙体，使整个建筑更加强固。

The workers reinforced the walls with sturdy materials, making the whole building stronger.