Hypokeimenon (Greek: ?ποκε?μενον), later often material substratum, is a term in metaphysics which literally means the "underlying thing" (Latin subiectum).
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。