behind closed doors片语

片语

1. 1

   秘密地、不公开地、闭门

   The negotiations were held behind closed doors for three days.

   谈判闭门进行了三天。

2. 2

   私下、背地里

   They seem happy, but behind closed doors they argue constantly.

   他们看起来很幸福，但私下里一直在吵架。