generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives
a card (usually plastic) that assures a seller that the person using it has a satisfactory credit rating and that the issuer will see to it that the seller receives payment for the merchandise delivered
plastics的用法和样例：
例句
Plastics have found wide applications in many ways: dishes for one, machine parts for another. 塑料在许多方面得到了应用：餐具是其中一例，机器部件是另一例。
It is their plasticity at certain temperatures that gives plastics their main advantage over many other materials. 正是在一定温度下塑料所具有的塑性使它比其他许多材料更优越。
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