mile·stone /ˈmaɪ(ə)lˌston/
里程碑,里程石,一里程標
milestone
里程碑
milestone
里程碑
Mile·stone n.
1. A stone serving the same purpose as a milepost.
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milestone
n 1: stone post at side of a road to show distances [syn: milepost]
2: a significant event in your life (or in a project)