音标：['streitәm] ；柯林斯词典等级：1 级；

n. 层, 地层, 阶层
[医] 层

n. one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)

词型变化：名词复数形式 : strata
考试类型：[托福/GRE]

词性分布：

名词100%

stratum的用法和样例：

例句

用作名词(n.)

They represent each society stratum.他们代表各个社会阶层。
Such inequalities are found in every stratum.这类不公平的现象存在于社会的每一个阶层。

词汇搭配

aqueous stratum蓄水层
inverted stratum层倒转
confining stratum不透水层,隔水层...
interbedded stratum夹层
surface stratum表层
impervious stratum不渗透地层
field stratum地面植被层
watertight stratum土壤不透水层...
permeable stratum透水层,透水岩层...
stratum Malpighii马耳皮基(氏)层, ...
privileged stratum特殊阶层
subsurface stratum亚表层
underlying stratum下伏岩层

经典引文

An archaeologist finds a stratum of earth and stones and mortar, mixed with potsherds and coins.
出自：R. G. Collingwood

【近义词】

layer层
vein静脉
bed床
level数量
band乐队
division划分
branch分部
section部分
echelon职权的等级
social class社会地位
class等级

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发表于:2019-01-02 / 阅读(55) / 评论(0)

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We're going to be shooting from minus 2,600 meters that's a little over 8,600 feet down at 30 kilometers from the entrance. 我们要从地下2600米处,大约8600多英尺之下--开始拍摄。那个地方离洞口30千米处。 The lead crews will

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Topic 1: Mass Affluent ClassAccording to Forbes China, by the end of 2014 ?China will have 14 million individuals identified as members of the mass affluent ?stratum, with investable assets worth from 600,000 to 6 million yuan. Who are these people a

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These are called love tents but they're not what you think. 虽被称为爱的帐篷，但是它们可与你所想不同。 Chinese colleges have come up with an unusual way to help freshmen settle in. 中国的大学别出心裁，以一种特殊的方

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学英语单词

a forxa galicia

a niche in the temple of fame