Word Detail

一旦
yídàn
once; in case
HSK 5 (v3.0)(HSK 2.0: Level 5)

Examples

一旦过了河, 你就安全了。
yí dàn guò le hé , nǐ jiù ān quán le 。
Once you cross the river, you'll be safe.
坏习惯一旦被养成,便不能简单地改正。
huài xí guàn yí dàn bèi yǎng chéng , biàn bù néng jiǎn dān dì gǎi zhèng 。
Once you've formed a bad habit, you can't get rid of it easily.