This scene could hold the key to unlocking the great philosophy which many admirers believe to lie within the director's oeuvre, or it could simply be a beautiful digression.

许多人相信这一幕是揭开导演的的全部作品的伟大哲学理念的钥匙，而另一部分人认为这只是个美丽的题外话。

youdao

He took his key and went upstairs, unlocking the door of his room.

他拿了钥匙就上了楼，打开他房间的门。

youdao

Michael hears the sound of a key unlocking the rear door. He quietly opens the door, removes the plastic key, and joins a line of inmates walking as they file through the hall outside Pope's door.

Michael听见了钥匙打开后门锁的声音，他静悄悄地开了门，拿走了那把塑料钥匙，在办公室外走廊，加入了正在行进的一队囚犯当中。

youdao

The breakthrough here had to do with the fact that the mathematical key for unlocking a secret message cannot be discerned from the key that locked it up.

FORBES: I've got a secret

The Higgs is the key to unlocking the question: Why does matter have mass?

CNN: Higgs and the holy grail of physics

But, 10 minutes into the second half, Saints suddenly found the key to unlocking the Hull defence.

BBC: Hull FC 24-24 St Helens