千变万化

qiān biàn wàn huà

ever-changing

Character by character

千qiān
thousand

变biàn
change

万wàn
ten-thousand

化huà
transform

山里的天气千变万化，要多带件衣服。

Mountain weather changes all the time — take an extra layer.

Tone: neutral.

Of weather, markets, fashion and anything unpredictable.

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