De quoi est fait ladder
Rungs between two uprights.
- Ladder side rails — a pour partie. Two lengthwise uprights.
- Ladder rungs — a pour partie. Rungs for the feet.
- Inclined plane — utilise. Climbing to a height.
- Friction — utilise. The feet hold on the floor by friction.
- Wood — est fait de. Ladders were made of wood.