keyway slotting

例句：

1. 1. The lockwas designed to fit perfectly into the keyway slot.
   这把锁设计得能完美地插入钥匙孔。
2. 2. The techniciancarefully removed the keywayslot and replaced it with anew one.
   技术员小心地移除了钥匙孔，并换上了一个新的。
3. 3. Thecar's engine is located in akeyway slot that allows easy access tothe fuel tank.
   汽车的引擎位于一个钥匙孔插槽中，便于轻松访问燃油箱。