| 单词 | substratum |
| 释义 | substratum 1.<正式>(underlying layer)下层；基层 His re-creation of the city is credible, with a substratum of fact to bolster the fiction.他对该城的再现是可信的, 虚构之下有着史实作为支撑。 2.<正式>(foundation)根基；基础 3.【生】基质 4.【地质】(bedrock)底土层；基岩 its deep substratum of chalk其深处的白垩基岩 5.【地质】(surface to which fixed organism is attached)附着层 6.【社】次层级 7.【摄】(玻璃或胶片的)感光底层 8.【哲】实体 9.【语言】下层语言；受减损语言 |
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