branch out
phrasal verb with branch verb [ I ] uk/brɑːntʃ/ us/bræntʃ/
涉足（尤指新工作）;扩展（业务）
to start to do something different from what you usually do, especially in your job
This designer has recently branched out into children's wear. 这位设计师最近开始设计儿童服装。
After a couple of years working for other people, she branched out on her own (= started her own business). 为别人打了几年工后，她开始自己创业。