It's vibe, it's X factor, it's undefinable.

它是一种氛围，它是未知因素，它是无法定义的。

We took some of our favorite performances of yours and added that undefinable Jackson Lamb quality.

我们挑选了你的一些精彩表演，并融入了杰克逊·兰姆那种难以言喻的特质。

The exclamation was always followed by an undefinable look cast upon him in return by the old servant.

每当他发出惊叹时，老仆人总会回给他一个难以形容的眼神。

With really successful or popular creative endeavours, there is always just a little bit of undefinable magic, and when it goes, it's gone forever.

在真正成功或受欢迎的创意项目中，总有一丝无法定义的魔力，而一旦这种魔力消失了， 就永远不会再回来了。

At that moment, I was grateful for music itself, for the sheer existence of this elusive, undefinable phenomenon that seems to ignore our brains and go straight to our hearts.

在那一刻，我感激音乐本身，感激这种难以捉摸、无法定义的现象单纯地存在， 它似乎无视我们的大脑， 直接触动我们的心灵。

The longing was with him day and night, an incessant undefinable craving, like the sudden whim of a sick man for food or drink once tasted and long since forgotten.

这种渴望日日夜夜伴随着他， 一种持续不断的无法形容的渴望，就像一个病人突然心血来潮想要吃过一次但早已忘记的食物或饮料。

It was only within a week that she had felt in him the undefinable change that made her restless in his absence, and as tongue-tied in his presence as though it were she who had a secret to keep from him!

仅仅在一周之内，她就感觉到他身上发生了无法形容的变化，这种变化让她在他不在的时候焦躁不安，在他面前张口结舌，好像她有什么秘密要瞒着他似的！