Je ne sais quoi 不可言说

Je ne sais quoi is something that cannot be adequately described or expressed.   不可言说指无法用语言充分表达的某物。   Je ne sais quoi是法语“我不知道是什么”的意思，这个词表达的不可言说之物多为褒义。   Example： Although the sculpture had flaws, it also had a certain je ne sais quoi that made it very appealing. 尽管这尊雕塑有瑕疵，但某种无法言说的东西赋予了它魅力。