さきがけて

さきがけて 【先駆けて 】▸ 夏に先駆けてツバメがやって来る Swallows come before summer .【ツバメは夏の前触れとなる 】｟書 ｠Swallows herald the beginning [coming ] of summer .▸ 彼らは何年も時代に先駆けて遺伝子操作に取り組んでいた They were years ahead of their time in the way they worked on gene manipulation .