to be at the start of a new period, especially when important changes or new things happen, or to cause important changes to start happening

These changes could usher in a period of dramatic economic growth. 这些改变有可能开启一个经济急剧增长的时期。

His inventions helped usher in the era of skyscrapers. 他的发明推动开启了一个摩天大楼的时代。

Niemeyer was one of the young intellectuals who revolutionized Brazilian society by ushering in new styles of music, art, and cinema. 尼迈耶是那一批年轻的知识分子之一，他们通过创立新兴风格的音乐、艺术和电影而给巴西社会带来了一场革命。