里程碑 lǐchéngbēi milestone
How to remember 里程碑: 里 in + 程 process + 碑 stone tablet = milestone.
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How it is used
- Literally a 'milestone' (roadside marker), used almost entirely figuratively - 历史性的里程碑 (lìshǐxìng de lǐchéngbēi) a historic milestone.
- Marks a landmark achievement or turning point: 具有里程碑意义 (jùyǒu lǐchéngbēi yìyì) of milestone significance.
- A set metaphor; pairs with 意义 (significance) and 事件 (event).