gōng / rén / yòng / hāng / tǔ / jī / bǎ / dì / jī / yā / shí / què / bǎo / fáng / wū / gèng / jiā / wěn / gù

工人用夯土机把地基压实，确保房屋更加稳固。

The workers used a rammer to compact the foundation and make sure the building was more stable.