once; in case
Example Sentences
一旦下雨，活动就得推迟。
yí dàn xià yǔ, huó dòng jiù dé tuī chí.
Once it rains, the activities will have to be postponed.
HaoHSK Flashcards & Audio
Save this word to your Smart Flashcards
Master vocabulary with Spaced Repetition (SRS), native pronunciation audio, and active recall practice on HaoHSK.
Mobile app coming soon to Google Play & App Store
Complete Chinese Learning & HSK Preparation Directory
Explore all Mandarin Chinese modules from beginner to advanced: Listening, Reading, Vocabulary, Grammar, Characters, and HSK Mock Tests.
📖Chinese Reading & Listening Practice
📘HSK & Thematic Chinese Vocabulary
HSK 3.0 Vocabulary (9 Levels):
HSK 2.0 Vocabulary (6 Levels):
