4周搞定2000+托福核心词
缩写词，略语；缩写，省略；简化
abbreviation
常考释义
Dinosaurs rapidly became extinct about 65 million years ago as part of a mass extinction known as the K-T event, because it is associated with a geological signature known as the K-T boundary, usually a thin band of sedimentation found in various parts of the world (K is the traditional abbreviation for the Cretaceous, derived from the German name Kreidezeit).
大约在6500万年前，恐龙迅速地灭绝，成为K-T大规模灭绝事件的一部分，之所以称作K-T是因为它与地质学上的标签K-T边界有关。K-T边界通常是一个薄薄的沉积带，在世界各处都有存在（K在惯例上是白垩纪Cretaceous的缩写，源自德国名字kreidezeit）。
来源于：阅读OFFICIAL42 P2n. 缩写；缩写形式；缩略形式
CD is the abbreviation for compact disc.
CD是compactdisc的缩写。
The postal abbreviation for Kansas is KS.
堪萨斯州的邮政缩写是KS。
UV is an abbreviation of ultraviolet.
UV是ultraviolet（紫外线）的缩写形式。
n. 缩略<正式>
I must protest in the strongest of terms at the abbreviation of my letter.
我必须对删减我的信件内容的行为做出最强烈的抗议。
Abbreviation of sleep means a reduction in REM dreaming.
缩短睡眠意味着缩短快速眼动做梦时间。
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