degumming of silk

例句：

1. 1.The old tree needed to be degummed before it could be replanted.
   这棵老树需要脱皮后才能重新种植。
2. 2. The skin on the chicken was too thick for degumming.
   鸡肉的皮肤太厚，无法脱皮。
3. 3.During the winter, the skin on the hands and feet needs to be degummed to prevent dryness.
   冬天时，手和脚的皮肤需要脱皮以防止干燥。