master skeleton key

• 万能钥匙

master skeleton key的用法和样例：

例句

1. Love is the master key to a happy home.
   爱是快乐家庭的万能钥匙。
2. The burglars had used skeleton keys or entered over the balcony.
   窃贼或者用了万能钥匙，或者是爬越阳台进入房间的。