He was extremely reticent about his personal life.

他对自己的个人生活讳莫如深。

《牛津词典》

He is still "very reticent about France", says one of those who saw him in Paris.

在巴黎看过他的人中的一个人说，他仍然“对法国保持很高的警惕性。”

youdao

Ask him about almost anything else in finance and he is far less reticent.

无论问他关于金融的任何事，他的回答都留有余地。

youdao

Understandably, he was reticent to confess then because of the financial consequences inherent with such an admission.

FORBES: The Consequences of a Possible Lance Armstrong Public Admission of PED Guilt

But he is decidedly reticent to discuss the ideas he is providing to stave off an invasion by Wal-Mart.

FORBES: Companies, People, Ideas

He is not reticent about making strong visual statements with the tools available to him, but he prefers achieving maximum impact with minimal fuss.

WSJ: Spielberg's Eye | Lincoln | Janusz Kaminski | Cultural Conversation by David Mermelstein