介绍:
Day31. Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact.
骨头看起来是脆硬的，但它也有一定的弹性，使得骨骼能够承受相当的打击。
Rigid
美 [ˈrɪdʒɪd] adj. 僵硬的;严格的;（规则、方法等）死板的;
These plates are fairly rigid.
这些盘子非常坚硬。
My father is very rigid in his thinking.
我父亲的思想非常顽固。
Hospital routines for nurses are very rigid.
医院中护士的日常工作非常刻板。
Exhibit 美 [ɪɡˈzɪbɪt, ɛɡ-] vt. 呈现;陈列，展览;证明;[法]提交证据
The first exhibit was a gun.
当庭出示的第一件证物是一支枪。
He has exhibited symptoms of anxiety and overwhelming worry
他表现出焦躁不安和过度忧虑的症状。
Elasticity 美 [ɪlæˈstɪsɪti, ˌilæ-] n. 弹性;弹力;灵活性;伸缩性
Gluten develops elasticity in a dough.
麸质使生面团有韧劲。
Income elasticity: A measure of the change in supply and/ or demand as income changes.
收入弹性：衡量收入变化引起供应和（或）需求变化的一种尺度。
Skeleton 美 [ˈskɛlɪtn] n.骨骼;（建筑物等的）骨架;梗概;骨瘦如柴的人
Only skeletons of buildings remained.
只剩下了建筑物的框架。
He is reduced to a skeleton because of illness.
例题： 尽管糖很美味，但它对身体有一定伤害，能加速人体衰老。
大家还在听
