深底的(湖, 海)
Profundal The deepwater zone of a lake beyond a depth of 10 meters. 深海的：深海中水深达10米以下的区域。
It has a long history with very profund preservations. 她历史悠久，源远流长。
Species found in the profundal zone are adapted to withstand low oxygen concentration, low temperatures, and low pH. 在深水层发现的种类，能够适应海底低氧、低温及低pH环境。
There is a kind of biological brotherhood that's much more profund than we ever realized. 这里存在着一种远比我们过去认识到的要接近得多的血缘关系。
Because my love for you can't be expressed in words, even though the most affecting, profund and gorgeous words. 因为我对你的爱无法用言语表达,哪怕是最感动,最深刻和最华丽的言词。
