• n. （组织的）层；[地质] 地层；社会阶层

来自拉丁语 stratum,展开物，覆盖，铺盖，道路，中性格于 stratus,展开，展开的，铺开的， 过去分词格于 sternere,展开，铺开，伸展，来自 PIE*ster,展开，伸展，词源同 strew,street.后 用于科学术语指岩层，地层等。

stratum (n.)

"horizontal layer," 1590s, from Modern Latin special use of Latin stratum "thing spread out, coverlet, beadspread, horse-blanket; pavement," noun uses of neuter of stratus "prostrate, prone," past participle of sternere "to spread out, lay down, stretch out," from PIE *stre-to- "to stretch, extend," from root *stere- "to spread, extend, stretch out" (see structure (n.)).

1. 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。

来自柯林斯例句

2. An aquifer is a water - bearing rock stratum such as sandstone and chalk.

地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.

来自《简明英汉词典》

3. 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.

来自《简明英汉词典》

4. Tramps are from the lowest stratum of society.

流浪汉来自社会最下层.

来自《现代汉英综合大词典》

5. Tramps are in a low stratum of society.

流浪汉生活在社会的下层.

来自辞典例句