4周搞定2000+托福核心词
arid = ar(干旱) + id(…的) = 干旱的
acid = ac(尖(酸)) + id(…的) = 酸的东西→酸类
avid = av(渴望) + id(…的) = 渴望的
ity = ity(名词) = 能力
affinity = af(再) + fin(范围) + ity(名词) = 进入范围内→密切关系
干燥
aridity
常考释义
There were climate changes, of course, and growing aridity and rising population densities may have forced them to intensify the exploitation of cereals, which in turn might have stimulated the development of sickles and other tools and the permanent communities that make agriculture efficient.
当然，天气变化是一个原因，越来越严重的干旱以及人口密度的增长可能迫使他们加强对谷物的开发利用，这转而可能会促进镰刀、其他工具以及使农业变得高效化的永久群落的发展。
来源于：阅读OFFICIAL52 P2n. 干旱；乏味
The name Sahara conjures up images of a desert of aridity.
"撒哈拉"这个名字使人想起干旱的沙漠情景。
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