mitre gate

例句：

1. 1. The mitre gate is the main entrance to the castle.
   门楣是城堡的主要入口。
2. 2. The gable of the house is adorned with colorful flowers.
   房子的山墙装饰着五颜六色的花朵。
3. 3.The sill of the window is cracked and needs repairing.
   窗户的门槛裂开了，需要修理。