Definition: an event which is famous or important in the history of something Level: C2
硅芯片的发明是科技史上的一个里程碑。
The invention of the silicon chip is a ___landmark in the history of technology.
这部电影是动作和武术电影历史上的一个里程碑。
This film is a ___landmark in the history of action and martial arts films.
柏林墙的倒塌是欧洲历史上的一个里程碑。
The fall of the Berlin Wall was a ___landmark in European history.
