汉英词典
Chinese-English Dictionary
MEANING OF 一旦 hsk 5
一旦
in case (sth happens) / if / once (sth happens, then...) / when / in a short time / in one day
如果 倘若 假定 假如 假设 假若 如其 倘或 如若 设若
①一天；一天之内一旦杀三卿。②副词。表示某一天一旦横祸飞来，将何以避之｜一旦大桥建成，就可大大缓解南北交通。
一 yī 旦 dàn
COMMON WORDS WITH 一旦
毁于一旦 ( 毀於一旦 )
huǐ yú yí dàn
be destroyed on one day / be wiped out in a day
( 毀於一旦 )
EXAMPLE SENTENCES

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