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Meanings
一旦
一旦
Section titled “一旦”
Quick Facts
Section titled “Quick Facts”
Pinyin: yī dàn
Traditional: 一旦
HSK: new-5
Part of speech: d / c
Meanings
Section titled “Meanings”
in case (sth happens)
if
once (sth happens, then…)
when
in a short time
in one day