基本解释n.八十年代中期；(年龄)八十几岁同根派生 英汉例句用作名词 (n.)Even into the mid nineteentwenties, in the formative years of quantum theory, fields and particles were envisioned as separate entities.即使到了二十世纪二十年代中期，在量子理论形式的那些岁月里，场和粒子还是被当成分立的实体。