milestone

里程碑、重要階段、重大事件

Learning to walk is an important milestone in a child's development.

學會走路是兒童發展上的重要里程碑。

里程碑、里程標石

An old stone milestone still stands beside the country road.

一塊古老的里程標石仍立在那條鄉間小路旁。

劃時代的、具里程碑意義的僅用於名詞前

The court's milestone ruling changed how these cases are handled.

法院這項劃時代的判決改變了這類案件的處理方式。