1 . His re-creation of the city is credible, with a substratum of fact to bolster the fiction.
他对该城历史的再现是可信的，虚构的小说情节隐念着一些事实作为支撑。
来自柯林斯例句
2 . The best nutrition supply was basic substratum mixed with rapeseed cake liquid.
营养供给以基本基质加菜籽饼水液为佳.
来自互联网
3 . The story has a substratum of truth.
这故事有事实的基础.
来自互联网
1.①酶作用物，酶解物，底物
2.②下层，基层，底层
1.底土层
2. "土壤剖面下部的土层，或指深厚B层的下部,或指B层与C层过渡的层次，或指母质层。"
1.生长基质
2. 又称“附着基”。海藻和某些贝类生长的附着物。
