plastic: applies to substances soft enough to be molded yet capable of hardening into a final fixed form: ~ materials allow the sculptor greater freedom.   mold表示浇铸塑造,还有一个意思是                                                                                                                                                发霉


pliable: suggests something easily bent, folded, twisted, or manipulated: headphones that are ~ and can be bent to fit.


pliant: may stress flexibility and sometimes connotes springiness or, in persons, submissiveness: select an athletic shoe with a ~ sole.   （spring弹簧发条，是卷曲的推拉后能恢复形状金属refers to a twisted piece of metal that can be pushed or pulled but always returns to its original shape afterwards）  


ductile: applies to what can be drawn out or extended with ease: copper is one of the most ~ of metals. #注意用法


malleable: applies to what may be pressed or beaten into shape: the ~ properties of god enhance its value.   锻造指利用锻压设备对金属施加压力，使其产生塑性变形。 类似于民进党常说的打压


adaptable: implies the capability of being easily modified to suit other conditions, needs, or uses: computer hardware that is ~.   （modify修改改造和change改变有区别，modify表示为了限制或者适应新需求而做修改means to make a difference in order to limit, restrict, or adapt to a new purpose，如modified the building for use by the handicapped改造建筑以便残疾人使用，语法中表示某词修饰某词，如副词修饰形容词，形容词修饰名词。change泛指改变，但暗示改动较大）


plastic塑性可塑: 可软化浇铸，又可硬化定形，pliable易折叠: 指容易弯折，pliant弹性或顺从: 表示物体有弹性或人顺从，ductile可延展: 可以容易地延伸，malleable可锻造: 可以打造定形，adaptable适应性的: 容易修改改造以适应新情况需求用途

记忆方法: 1）首字母PPPDMA排列成DAMP3潮湿<==可塑

               2）可塑的意思是容易变形mean susceptible of being modified in form or nature.