stratas的中文意思、音标与词形变化

(strata 的复数) pl. 层, 地层, 阶层 [医] 层

plural of strata 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) n people having the same social, economic, or educational status n an abstract place usually conceived as having depth