好词典
overnight
UK //ˌəʊvəˈnaɪt//US //ˌoʊvərˈnaɪt//
词源
源自中古英语 'overnight'，由 'over'（越过）和 'night'（夜晚）组合而成，字面意思是“经过夜晚”。
adverb
❶ 指在夜间或短时间内发生或完成的事情，强调时间短促或突然性。
“The weather changed overnight, and we woke up to snow.”
（天气一夜之间变了，我们醒来时发现下雪了。）
“She became famous overnight after her video went viral.”
（她的视频走红后，她一夜成名。）
同义词:suddenly, quickly, abruptly
adjective
❶ 形容持续一整夜或适用于夜间的事物，通常与时间或活动相关。
“We took an overnight train to Paris.”
（我们乘坐了一趟夜班火车去巴黎。）
“She packed an overnight bag for the short trip.”
（她为这次短途旅行收拾了一个过夜包。）
同义词:nightly, nocturnal, evening
常见短语
overnight success — 形容突然或短时间内取得的成功，通常暗示看似轻松但实际上可能经历了长期努力。
“Many people think she was an overnight success, but she worked hard for years.”
（很多人以为她是一夜成名，但她其实努力了很多年。）