turn something around
phrasal verb with turn verb uk/tɜːn/ us/tɝːn/
(UK also turn something round)
使（企业、计划或体系）好转，使扭转，使有起色
to change an unsuccessful business, plan, or system so that it becomes successful
The new management team turned the ailing company around in under six months. 新的管理团队使这个不景气的公司在不到半年的时间里焕发了生机。