4周搞定2000+托福核心词
primarily = prim(首要) + ary(…的) + ly(表副词) = 主要地；首要地
primary = prim(首要) + ary(…的) = 首要的
alluvial = al(临近) + luv(流) + ial(形容词) = 流到近处来→冲积的
congenial = con(共同) + gen(产生) + ial(形容词) = 产生共同[兴趣]→情投意合的
首先开始的→原始的
primordial
常考释义
It is hypothesized that the primordial cloud of dust and gas from which all the planets are thought to have condensed had a composition somewhat similar to that of Jupiter.
天文学家们推测，所有行星原始状态的尘埃和气体形成的云状物凝聚，合成物与木星的有些类似。
来源于：阅读OFFICIAL16 P3adj. 原始的；原初的；太古的<正式>
Twenty million years ago, Idaho was populated by dense primordial forest.
两千万年前，爱达荷州覆盖着茂密的原始森林。
It is hypothesized that the primordial cloud of dust and gas from which all the planets are thought to have condensed had a composition somewhat similar to that of Jupiter.
天文学家们推测，所有行星原始状态的尘埃和气体形成的云状物凝聚，合成物与木星的有些类似。
来源于：阅读OFFICIAL16 P3adj. 原始的；初生的【生】
adj. 最初的；根本的；主要的<正式>
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