polymer
🇺🇸
/ˈpɑːlɪmər/
🇬🇧
/ˈpɒlɪmə(r)/
A polymer is a big molecule made up of many smaller molecules linked together.
Many plastics are made from polymers, which can be molded into different shapes.
許多塑料是由聚合物製成的,可以被塑造成不同的形狀。