To gather swiftly like clouds and sweep away like a mat; describing rapid movement and an overwhelming, grand momentum or force.
暴风雨来临前，天空中的乌云云屯席卷，很快就覆盖了整个城市。
Before the storm arrived, the dark clouds in the sky gathered swiftly and swept across, quickly covering the entire city.
Era:
Early Modern
Frequency:
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