verbalize

He's a real genius but he has difficulty verbalizing his ideas.

他确实是个天才，可是难以用语言表达他的思想。

I cannot verbalize it in a concrete way. I am sometimes quite confused.

就是很多事情我是说不出一个具体的东西,有时候也挺迷惑的.

This depressed patient does not verbalize.

这位情绪低落的病人不爱说话.

...his inability to verbalize his feelings.

他无法用言语表达自己的感情

I find it difficult to verbalize.

我感到很难用言语表达.

Urge your child to verbalize his feelings.

鼓励你的孩子用言语表达自己的情感。