There will inevitably be some mistakes in life, but most of them can be solved through hard thinking.

Things fall into the gap, you can try the following methods:

1 is a gap formed by a movable object, which can be directly removed and taken out by hand.

2. If the object does not move and the gap is not big, it can be clipped out with a long clip or hooked out with a hook.

3. The falling objects are all metal objects. You can tie a magnet with a rope and suck it out by magnetic force.