Refers to great changes or profound transformations over time, often implying dramatic societal or environmental shifts.
沧海桑田，东海扬尘，这座城市在短短几十年间发生了翻天覆地的变化。
The world undergoes profound changes, like the East Sea raising dust; this city has experienced monumental transformations in just a few decades.
Era:
Ancient
Frequency:
Synonym:
Story:
Once upon a time, two immortals, Wang Yuan and Magu, agreed to meet at Cai Jing's house for a drink. Wang Yuan and his company arrived quickly, but Magu was nowhere to be seen, so he sent an envoy to invite her.
When Magu arrived, she explained that she had been ordered to patrol Penglai and had already witnessed the East Sea turn into mulberry fields three times, and now the seawater had receded by half again.
Wang Yuan then remarked that the East Sea would soon be raising dust once more.
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