entrance hole

例句：

1. 1. The car had a small entrance hole in the back door.
   这辆车后门有一个小的入口孔。
2. 2.The old house had several entrance holes that were difficult to repair.
   这所老房子有几个难以修复的入口孔。
3. 3. The scientist carefully examined the entrance hole of the spaceship.
   科学家仔细检查了飞船的入口孔。