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汰旧换新
汰舊換新
tàijiùhuànxīn
1. out with the old and in with the new (idiom)

Character Breakdown

汰
tài
to eliminate, to scour, to wash out; excessive
HSK 6 7 丶
旧
jiù
old, ancient; former, past
HSK 3 5 丶
换
huàn
to change; to exchange, to swap, to trade
HSK 3 10 丶
新
xīn
new, recent, fresh, modern
HSK 2 13 丶

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