regressive infantilismtardy infantilism迟发: tardy; tardive幼稚: very young; immature; childi ...迟发幼稚型: juvenilism迟发性幼稚型: tardy infantilism幼稚: 1.(年龄小) young2.(头脑简单 ) childish; puerile; naive 幼稚的想法 naive ideas; 幼稚病 [心] infantilism; (思想上的)infantile disorder下载手机词典可随时随地查词查翻译