primal
adj[attrib 作定语]
(fml 文)
1 first or original; primeval 最初的; 原始的
the loss of their primal innocence 他们原有的天真素质之丧失.
2 chief or most important; fundamental; primary(2) 主要的; 首要的; 基础性的; 根本的
of primal importance 至为重要的.
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.