He spoke so fast that he couldn't express himself clearly.

他说得太快了，不能清楚地表达自己的意思。

youdao

He did not know French or German, and had to express himself through gestures.

他既不懂法语也不懂德语，只能用手势来表达自己。

youdao

He can't express himself in English.

他不能用英语表达自己的思想。

youdao

Mister Ramirez might not have been able to express himself in English, but he could do so with his art.

VOA: special.2010.04.14

And it's because it's his view of world his ability to express himself and I find that very importance.

因为那是他对世界的看法,是他表达自我的能力,我认为那很重要。

麻省理工公开课 - 电影哲学课程节选

He decides to decipher the scribbles of a man who could express himself only by gesture.

ECONOMIST: Novels from the Netherlands

His family said he was a "talented and creative person and used music to express himself".

BBC: Gintaras Zelanius

So it is in life: a fool through and through, and yet he wants to express himself.

NEWYORKER: So It Is in Life