solid as a rock
成語所屬單字solid
solid as a rock — 慣用語
1. Extremely firm, strong, or reliable — used for both physical objects and abstrac
1.慣用語
釋義
穩如磐石；非常穩固
Extremely firm, strong, or reliable — used for both physical objects and abstract things like relationships or plans.
例句
After ten years, Christopher and Diya's marriage is still solid as a rock.
The old bridge is built on pillars that are solid as a rock even after a hundred years.