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
reliance = re(再) + li(捆绑，联合) + ance(表名词) = 自恃
abundance = ab(一再) + und(波浪) + ance(表名词) = 波浪一再翻滚→溢出→大量
支撑下去的东西→粮食;坚持
sustenance
常考释义
An estimate of the basic level of sustenance then necessary for human survival has been judged at 2200 calories per day.
用于人类生存所必须的基本生计，估计在每天2200卡路里。
来源于：阅读OFFICIAL53 P3n. 生计
He stared at the fishing boat and wondered what kind of life it was to drag sustenance from this hard sea.
他盯着那条渔船，想着靠它在这样一片条件恶劣的海上打鱼为生是怎样一种生活。
An estimate of the basic level of sustenance then necessary for human survival has been judged at 2200 calories per day.
用于人类生存所必须的基本生计，估计在每天2200卡路里。
来源于：阅读OFFICIAL53 P3n. 支持；支撑
The camaraderie that came with membership of a fighter squadron appears to have provided a degree of spiritual sustenance.
同属一个飞行中队产生的战友情似乎在一定程度上成了精神支柱。
n. 维持；持续
Efficiency is an issue of optimising an intricate network of processes for the long-term sustenance of performance standards.
效率就是为保证绩效标准长期可持续而对复杂流程网络进行优化的问题。
n. 食物；养分；营养
The state provided a basic quantity of food for daily sustenance, but little else.
政府提供了只够维持基本生计的口粮，别无他物。
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