apodeum

例句：

1. 1.The apodem is the main support for the door.
   门框是门的主要支撑结构。
2. 2.The apodem was made of wood and iron.
   门框是由木头和铁制成的。
3. 3.The apodem was damaged during the storm.
   风暴期间，门框受损了。