a plank of wood的用法和样例：
- He fixed a plank of wood to the wall as a shelf.
- A plank of wood bridged the stream.
- Kuwaiti prisoners have their ears nailed to a plank of wood.
- """A plank of wood!"" said the Miller, ""that is just what I want for my roof."
- Red is making a sign, carefully routing letters into a long plank of wood.