Unfortunately, ARDOT provided a drone inspection video from 2 years earlier, clearly showing the crack on the tie beam.

不幸的是， ARDOT 提供了两年前的无人机检查视频，清楚地显示了系梁上的裂纹。

The square ceiling trap was right over my head, so I pushed that up and reached in as far as I could and dropped his leather keyholder behind one of the dusty tie beams or whatever they were.

方形的天花板陷阱就在我的头顶上方，所以我将它推上去，尽可能地伸进去，把他的皮革钥匙扣放在一根布满灰尘的系梁或其他任何东西后面。