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).
雙語例句
1. His re-creation of the city is credible, with a substratum of fact to bolster the fiction.
他對該城歷史的再現(xiàn)是可信的，虛構的小說情節(jié)隱念著一些事實作為支撐。
來自柯林斯例句
2. The best nutrition supply was basic substratum mixed with rapeseed cake liquid.