stratum
英 [ˈstrɑːtəm]
美 [ˈstreɪtəm]
n. 层; 岩层; 地层; 阶层
复数：strata
Collins.1 / BNC.8071 / COCA.11902
牛津词典
noun
- 层；岩层；地层
a layer or set of layers of rock, earth, etc. - 阶层
a class in a society- people from all social strata
来自不同社会阶层的人
- people from all social strata
柯林斯词典
- N-COUNT 社会阶层
Astratumof society is a group of people in it who are similar in their education, income, or social status.- It was an enormous task that affected every stratum of society...
这是一项影响到社会各阶层的重大工作。 - The rebels came overwhelmingly from the poorest strata of rural society.
叛乱分子绝大多数来自农村的最贫困阶层。
- It was an enormous task that affected every stratum of society...
- N-COUNT 岩层
Strataare different layers of rock.- Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago.
岩层中有证据表明，该地区在 15,000 年前曾经非常干旱。
- Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago.
英英释义
noun
- an abstract place usually conceived as having depth
- a good actor communicates on several levels
- a simile has at least two layers of meaning
- the mind functions on many strata simultaneously
- people having the same social, economic, or educational status
- the working class
- an emerging professional class
- 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)
双语例句
- The stratum of main source rock among the marine facies is the upper Sinian and the Paleozoic group.
其中海相地层中的主力烃源岩层为上震旦统和上古生界石炭―二叠系。 - Strengthens the stratum corneum cells in the fat layer to effectively resist the stimulation from sunlight and air pollution.
增加脂肪层之角质层细胞，加强抵抗阳光和日常污浊空气带来之刺激。 - And it also can remain in the stratum corneum, exacerbating irritation.
而且它还会遗留在角质层中，加剧对肤质的刺激。 - The chapter analysed two important concepts of the study of social stratification, class and stratum.
此章主要分析了社会分层研究中的两个重要概念&阶级和阶层。 - A thin layer or stratum, as of coal or rock.
薄薄的一层或层面，如煤或岩石的。 - Both inhibition of cell mitosis, can effectively penetrate into the stratum corneum.
同时具有抑制细胞有丝分裂的作用，能有效地渗透进皮肤角质层。 - Tramps are from the lowest stratum of society.
流浪汉来自社会最下层。 - This is a stratum we must win over.
这一阶层，我们是必须争取的。 - The population is divided into strata and a random sample is taken from each stratum.
总体分成阶层后由各阶层抽选出来的随机样本。 - This evolution is stratum accumulation but not replacement.
这种演进是“层累”式的，而并非是“替换”式的。