世事繁雜，難以言說之物何其多?！半y以用語言表達”用英語怎么說呢?

Je ne sais quoi is something that cannot be adequately described or expressed.

不可言說指無法用語言充分表達的某物。

Je ne sais quoi是法語“我不知道是什么”的意思，這個詞表達的不可言說之物多為褒義。

Example：

Although the sculpture had flaws, it also had a certain je ne sais quoi that made it very appealing.

盡管這尊雕塑有瑕疵，但某種無法言說的東西賦予了它魅力。