骤然 zhòurán suddenly
suddenly; abruptly
How to remember 骤然: 骤 procedure + 然 however = suddenly.
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How it is used
- Suddenly / abruptly - 气温骤然下降 (qìwēn zhòurán xiàjiàng) the temperature dropped sharply.
- A more formal/literary 'all of a sudden' than 突然 (tūrán), stressing an abrupt change.
- Register: written; often with changes in weather, mood, or numbers.