je ne sais quoi
noun /ʒə nə seɪ ˈkwɑː/
/ʒə nə seɪ ˈkwɑː/
[uncountable] (from French, often humorous)- a good quality that is difficult to describe
难以描述的好品质；妙不可言的特性 - He has that je ne sais quoi that distinguishes a professional from an amateur.
他有那种难以言表的特质，体现出他是专业而非业余的。
词源French, literally ‘I do not know what’. - He has that je ne sais quoi that distinguishes a professional from an amateur.