VOA慢速英语:Smart Bandages to Heal Wounds More Quickly

sensor – n. a device that detects or senses heat, light, sound or motion, and reacts to it

polymer – n. a chemical product that is made of small molecules ordered in a simple repeating structure to form a larger molecule

titanium – n. a very strong and light silvery metal

analyze – v. to study something closely and carefully

delivery - n. the act of taking something to a person or a place

specific - adj. special; clearly and exactly presented