4周搞定2000+托福核心词
omnipresenent = omni(到处) + pre(预先) + sen(存在) + ent(…的) = 到处都出现→无所不在的
precursor = pre(预先) + curs(跑) + or(人) = 先跑者→先驱
observatory = ob(表加强) + serv(保持) + atory(场所) = 天文台
observe = ob(表加强) + serve(保持) = 一直保持→遵守,引申为观察
accommodation = ac(使) + com(一起) + mod(模式) + ation(表名词) = 在一起的模式→住处; 适应
adaptation = ad(一再) + apt(适应) + ation(表名词) =
预先保持的（质量）→保存
preservation
常考释义
Another notable thing about the two bodies was that they were in an identical state of preservation, suggesting they had been buried at the same time.
另一个值得注意的事情是，这两具尸体的保存状况是相同的，这就说明了他们是在同一时间下葬的。
来源于：听力OFFICIAL37 L2n. 维持；保持
the preservation of the status quo
现状的维持
the preservation of a way of life
生活方式的保持
Another notable thing about the two bodies was that they were in an identical state of preservation, suggesting they had been buried at the same time.
另一个值得注意的事情是，这两具尸体的保存状况是相同的，这就说明了他们是在同一时间下葬的。
来源于：听力OFFICIAL37 L3Attack by scavengers and bacteria, chemical decay, and destruction by erosion and other geologic agencies make the odds against preservation very high.
食腐动物和细菌的破坏、化学性腐烂、腐蚀以及其它地质因素都会非常不利于保存。
来源于：阅读OFFICIAL20 P3Many other processes may after the shell of a clam or snail and enhance its chances for preservation.
很多其他过程也许会改变哈喇壳或蜗牛壳并且增加它被保存下来的几率。
来源于：阅读OFFICIAL20 P3Although it is certainly true that the possession of hard parts enhances the prospect of preservation, organisms having soft tissues and organs are also occasionally preserved.
虽然拥有坚硬的部分的确会增加保存的可能性，但是具有软组织和器官的生物偶尔也会被保存下来。
来源于：阅读OFFICIAL20 P3n. 保护；维护
the preservation of objects in museums
对博物馆藏品的保护
the preservation of buildings of architectural or historic interest
对有建筑学意义或历史意义建筑物的保护
the preservation of historic houses
对历史古屋的维护
heritage preservation
遗产维护
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