Try as I may I could never explain.

试着解释我无法解释的。

youdao

Keynes, though, could never explain exactly what the mechanism was.

凯恩斯，不过，无法解释到底是什么机制。

youdao

I just know that it was something very complex and confused, that I could never explain in words, but I am sure that I was experiencing a terrible anguish.

我只是感觉到它很复杂和混乱，但永远也无法用语言来描述，可是我很确定我正在经历很严重的困扰和痛苦。

youdao

He could never explain why he should be president.

ECONOMIST: Lexington

She could not explain how she knew this, never having seen the couple.

NEWYORKER: Temporary