ultra-pref 前缀 (used fairly freely with adjs 可用作较多形容词的前缀)1 extremely; to excess 极端; 过分 ultra-conservative * ultra-fashionable.2 beyond a specified limit, extent, etc 超过某一限度、 范围等: ultraviolet ultra-high. Cf 参看 infra-.
牛津英汉双解词典