brave new

剑桥词典

used to refer to something new, especially to suggest that there is some doubt that it can be good or successful
（尤指前景難以預料的）新的，嶄新的
They introduced customers to the brave new world of app-driven marketing . 他們將顧客引入了這種通過應用程序進行市場營銷的全新世界。 返回 brave new