fall to pieces的用法和样例：
- After the car accident, she seemed to go to pieces.
- His promising career began to fall apart.
- The shack seemed almost ready to collapse.
- The house might fall down in a few months.
- The plane struck on the hill and went to pieces.
- Even these hard parts may crumble to dust.
- At that speed the plane began to disintegrate.
- The empire was rapidly falling into pieces.