There's an indefinable air of tension at the meeting.

会议上有种难以描述紧张气氛。

But the Brits also appreciate the je ne sais quoi that only French culture provides.

但英国人也非常欣赏法国文化中独有难以描述好品质。

It was a crime of unspeakable magnitude, for which there can be no forgiveness.

任何言语都难以描述行径，罪孽深重 无可饶恕。

Time is so familiar, but it's so hard to describe.

时间熟悉，却又难以描述。

Her hands and her neck began to sweat. But she knew that no emotion was pertinent.

她手和脖子开始流汗，但她知道任何一种感情都难以描述她此时心情。

With each do something differently with our tongues when we pronounce it, and we both agree, it's incredibly hard to describe.

每个人在发音时用我们舌头做一些不同事情，我们都同意， 这非常难以描述。