知识老化 zhīshilǎohuà obsolescence of knowledge Definitions Defs Origin Strokes Stroke Words Sentences Sents 知识老化 知識老化 zhīshilǎohuà obsolescence of knowledge the condition of one's knowledge becoming outdated or obsolete
知识老化 知識老化 zhīshilǎohuà obsolescence of knowledge the condition of one's knowledge becoming outdated or obsolete
