head corner of rail

例句：

1. 1.The head corner of the building is where the elevators are located.
   大楼的头部角落是电梯的位置。
2. 2. The artist used a corner to create a sense of depth in his painting.
   艺术家利用角落在画中创造出深度感。
3. 3. The corner of the road was crowded with people waiting for their turn.
   路角处挤满了等待轮到的人。