楔的用法和样例：
例句
-
他中饭吃一根香蕉和一块楔形的奶酪。
He had a banana and a wedge of cheese for lunch. -
拱楔块用于形成拱或穹窿的曲线部分的楔形石头中的一块
One of the wedge-shaped stones forming the curved parts of an arch or a vaulted ceiling. -
在门底下塞一块楔子，让门保持开着。
Put a wedge under the door so that it will stay open. -
这扇窗户关不严，得用楔子 上了。
The window doesn't stay closed unless you wedge it.
