不宜公开的，私下的

4. off the record在线翻译

ph.

1. These remarks are off the record.
这些话是私底下说的。

2. Off the record, the policeman doubted the mayor's story.
私底下，那警察对市长的说辞有所怀疑。

adv

1. not for quotation

e.g. he spoke to the reporter off the record