I'm afraid I lost my card key.

我恐怕我把卡式钥匙遗失了。

youdao

Take your card key.

请随身携带钥匙卡。

youdao

Please swipe your card key to enter this building.

你需要刷门禁卡才能进入这幢大楼。

youdao

All the lights go off when you take your key card out of the slot and depart the room.

FORBES: Apocaholics Anonymous

However, Mr Holmes' defence team said his key card had been deactivated as he was in the process of dropping out.

BBC: Aurora shootings: James Holmes 'threatened professor'

Every now and then, characters have to perform a task that could alter the story's events, such as hunting down a key card to stop a speeding train.

CNN: Game review: 'The Bouncer'