脱皮

1. • to peel off to flake off

     of paint etc

2. • (of an insect or snake etc) to molt
3. • to peel off due to hard labor, blistering or sunburn etc

     of skin

4. • to go through a grueling experience

     fig.

Character by character

• 脱(tuō)shed
• 皮(pí)surname Pi