78 graded passages with Pinyin, audio & quizzes
Phrases by situation, with pinyin & audio
Learn words through real-life situations
Stroke order for every character
The building blocks of Chinese characters
Split hanzi into parts, remember by story
Meaning: once... then, as soon as...
一旦下定决心，就要坚持到底。
Yīdàn xiàdìng juéxīn, jiù yào jiānchí dàodǐ.
Once you have made up your mind, you must persevere to the very end.
一旦发生地震，就立即撤离。
Yīdàn fāshēng dìzhèn, jiù lìjí chèlí.
In the event of an earthquake, evacuate immediately.
一旦错过这个机会，就再也找不回来了。
Yīdàn cuòguò zhège jīhuì, jiù zài yě zhǎo bù huílái le.
Once you miss this opportunity, you will never be able to regain it.
•一旦 applies to hypothetical future turning points; the main clause must include 就 or 便; do not use for events already accomplished.
⚠️ Common Mistakes:
•Using 一旦 for an already accomplished fact: use 既然 instead.
•Omitting 就 or 便 in the consequent clause: disrupts the correlative pattern.
•Confusing 一旦 with 一经: 一旦 posits a hypothetical scenario, while 一经 indicates an objective procedural condition already or certainly met.
Combine Vocabulary, Grammar, Reading Practice, Listening, Hanzi Writing, and Mock Exams at HSK 6 to master all skills together.
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