midsixties 词形变化 only 复数 释义与例句 n. 1. The middle years of the 1960s. 仅复数 词汇关系 名词 同义词 1 sixties 上位词 1 time of life 整体词 4 years age old age eld 词源 From mid- + sixties. 来源：wiktionary