私下的

Columban introduced to Europe the Irish penitential discipline, including private confession.

高隆邦把包括私下忏悔在内兰苦修条例介绍给了欧洲。

The house was sold by private treaty.

这座房子是通过私下订立协议出售。

Her public stance was much tougher than her private feelings on the subject.

在这一题上，她公开立场比她私下态度要强硬得多。