self-closing door

• 自闭门

self-closing door的用法和样例：

例句

1. They are in the closed door to hugger-mugger.
   他们闭门秘密商议呢。
2. That is why it is important for you to attend our closed door briefings and seminars.
   所以出席我们的闭门简报和研讨会是重要的。