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。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....
a level substratum水平的底层His recreation 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。...its deep substratum of chalk...深厚的白垩地层The story has a substratum of trut...
She had an impeccable aristocratic pedigree.她有纯正的贵族血统。She had impeccable taste in clothes...她的穿衣品位无可挑剔。He has an impeccable sense of timing...他有着无可挑剔的节奏感。He dressed well and had impeccable manners.他衣冠楚楚，待人接物无可挑剔。Her acad...
If such materials became generally available to the optics industry the payoffs from such a breakthrough would be enormous.如果这些材料能够普遍用于光学产业，那么这一突破带来的收益将非常巨大。This part of the subject is called physical optics.这部分内容叫做物理光学....
She was hardened by the rigours of the Siberian steppes.西伯利亚大草原的艰苦环境使她变得坚强起来。We also saw bear tracks and some lovely little Siberian deer.我们还看到了熊的足迹和可爱的西伯利亚小鹿.Siberian breed of white or cream dog of the spitz family.斯皮茨狗...