| 单词 | substratum |
|---|---|
| 音标 | ['sʌb'strɑ:təm] |
| 解释 | n. 基础；地基 |
| 红宝书 | 【英】 n.基础，根据(an underlying support；foundation ) 【记】 sub(下面)＋stratum( 层次)→下面一层→基础 |
| 字源 | substratum (n.) 1630s, from Modern Latin substratum (plural substrata), noun use of neuter singular past participle of Latin substernere "to spread underneath," from sub- (see sub-) + sternere (see stratum). |
| 不择手段背单词 | n. 基础; 下层土 【记】sub下面, stratum(n 地层; 层次)－基础 【参】subterranean(adj 地下的); terrain(n 地形); terrace(n 平台) |
| 趣味全助记 | 【记】sub + stratum地层；status 地位 |
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