usher in

phr

• ① 引导(某人)进来
  • usher in a guest=usher a guest in引导客人进来

• ② (天气)传报(季节);(事件、时代)声明(…的)到来
  • April ushered in a few weeks of warm weather.四月带来了几个星期温暖的天气。
  • The reform ushered in a period of prosperity.那项改革引来了一段繁荣的时期。