behind closed doors

漢語翻譯

例句：

1. The society held a series of meetings behind closed doors.
   這個團體舉行了一系列的秘密會議。
2. Investigators will depose the witness behind closed doors.
   調查員們將讓證人們在關閉的門後宣誓作證
3. The meeting was held behind closed doors.
   會議秘密進行。