one and onlya) used to emphasize that someone is very famous 闻名的,知名的 the one and only Frank Sinatra 无人不知的弗兰克•西纳特拉
b) used to emphasize that something is the only one of its kind 〔用于强调同类中〕仅有的,唯一的 I even tried my one and only French joke on them. 我甚至试着把我知道的唯一一个法国笑话讲给他们听了。
→ one and only at one4(1)