At that moment he heard Gill's key turning in the lock of the door.

那时他听到吉尔的钥匙在门锁里转动的声音。

《柯林斯英汉双解大词典》

The very mystery of him excited her curiosity like a door that had neither lock nor key.

他的神秘像一扇既没有锁也没有钥匙的门激起了她的好奇心。

youdao

Mary put the key in the lock of the door and turned it.

玛丽把钥匙插进门锁，转动了一下。

youdao

The basic reality of American prisons is not that of the lock and key but that of the lock and clock.

NEWYORKER: The Caging of America

Check the lower left-hand corner of your browser for the symbol of an unbroken lock or key.

BBC: Is e-shopping safe?

Settling into my four-poster bed, I'm lulled by the sound of the wind spiralling up off the sea, joined by the faint creak of a rocking chair and, just perhaps, the slightest click of a key turning in a lock.

BBC: The haunted land of New England