gōng chéng shī / zhèng zài / shè jì / xīn de / héng liáng / yǐ / tí gāo / jiàn zhù wù / de / wěn dìng xìng

工程师正在设计新的桁梁，以提高建筑物的稳定性。

The engineers are designing new girders to improve the stability of the building.