a sea change
巨大的变化或转变，尤指对某种情况或态度的完全转变
文学·描述重大转变
英文释义
a profound or significant transformation or change
例句
There has been a sea change in public opinion since the new policy was introduced.
典故来源
源自莎士比亚戏剧《暴风雨》，原指海水因魔法而巨变，后比喻彻底、根本性的转变。