分久必合，合久必分
fēn jiǔ bì hé , hé jiǔ bì fēn
释义
- 1. lit. that which is long divided must unify, and that which is long unified must divide (idiom, from 三國演義|三国演义[sān guó yǎn yì])
- 2. fig. things are constantly changing
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