milestone /ˈmaɪlˌstəʊn/ CET6 TEM4

• 1. 

  N-COUNT A milestone is an important event in the history or development of something or someone. 里程碑

  例：

  He said the launch of the party represented a milestone in Zambian history.

  他说该党的成立代表着赞比亚历史上的一个里程碑。