4周搞定2000+托福核心词
sustaining = sus(下，底) + tain(拿住) + ing(形容词) = 自立的
suspend = sus(下，底) + pend(悬挂) = 挂在下面→悬挂→中止
sustaining = sus(下，底) + tain(拿住) + ing(形容词) = 自立的
attain = at(加强) + tain(拿住) = 拿住了→获得
在下面握住→支撑
sustain
常考释义
Thus, in the 1950s and 1960s, there emerged an awareness in Western societies that resources for the provision of fossil fuel energy were finite and exhaustible and that the capacity of nature or the environment to sustain economic development and population was also finite.
因此，在 1950 年代和1960 年代，西方国家出现了一种意识：矿物燃料资源是有限的、可能枯竭的，所以大自然或者环境用以支撑经济和人口增长的资源也是有限的。
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