牢固 (láo gù): บริษัท

This table has been used for over a decade, yet its structure is still very sturdy.

To ensure the bridge is firm, the engineers repeatedly inspected every welding point.

After three years of dating, the foundation of their relationship has become increasingly solid.

After the earthquake, only the building constructed according to new standards remained firm and did not collapse.

Mom tied the string very tightly to prevent the kite from being blown away by the wind.