Now U.S. and British scientists have come up with three different recipes for advanced bandages that jump-start the repair of injured skin but then break down, leaving behind only healed tissue.

• 现在美、英科学家已发明了三种不同的高级绷带，能加速受伤皮肤的修复过程，然后绷带本身慢慢自行降解，只留下完好如初的皮肤。