4周搞定2000+托福核心词
byproduct = by(副的) + pro(向前) + duct(引导) = 顺带向前引导→副产品
improvide = im(不) + pro(向前) + vid(看) + e(动词后缀) = 没有提前准备→即兴创作
byproduct = by(副的) + pro(向前) + duct(引导) = 顺带向前引导→副产品
abduct = ab(离开) + duct(引导) = 引导离开→绑架
activity = act(行为) + ivity(特性) = 活动
captivity = cap(握住) + ivity(特性) = 囚禁；被关
向前引导的特性→生产力
productivity
常考释义
Although population, industrial output and economic productivity have continued to soar in developed nations, the rate at which people withdraw water from aquifers, rivers and lakes has slowed.
尽管在发达国家，人口仍然急剧膨胀，工业和经济依然高速发展，但人们开采地下水和地表水的速度却减缓了。
来源于：剑雅7-Test1n. 生产力；生产率
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