4周搞定2000+托福核心词
abrasion = ab(表加强) + ras(刮擦) + ion(表名词) = 磨损
abstraction = abs(离去) + tract(拉) + ion(表名词) = 被拉开→抽象
靠垫
cushion
常考释义
Immediately adjacent to the timberline, the tundra consists of a fairly complete cover of low-lying shrubs, herbs, and grasses, while higher up the number and diversity of species decrease until there is much bare ground with occasional mosses and lichens and some prostrate cushion plants.
由于紧挨着树带界线，苔原上都是矮灌木、草本植物和牧草。随着海拔的增加，物种的数量和多样性会逐渐减少，直到出现大量空地伴着零星的苔藓和地衣这样的伏地垫状植物。
来源于：阅读OFFICIAL1 P3以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
