behind the curtain

• adv. 在幕后(秘密地；私下；暗中)

behind the curtain的用法和样例：

例句

用作副词 (adv.)

1. Could we have a word before you go to the meeting?
   你去开会之前，咱们能私下说句话吗？
2. The case will be settled out of court.
   这个案件将不通过法庭而私下解决。