例句與造句

1. Hy-Rib is a steel encasement stiffened by rigid ribs used in reinforced walls, ceilings, and floors.
2. This anatomy includes a large, keeled breastbone, elongated coracoids and a modified glenoid joint in the shoulder, and a semi-rigid rib cage.
3. It's difficult to find rigid rib in a sentence. 用rigid rib造句挺難的