Please return your key before you leave.

您分开时，请回还您的钥匙。

youdao

Please return your key card before you leave.

离开前请您交回房卡。

youdao

Excuse me, Sir. Did you remember to return your key?

接待员：对不起，先生，请问您的钥匙退了吗？

youdao

And if you've never used those, they're usually above your Return key.

如果你从来没用过这些竖线，它们在,回车键的上面。

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When you return to your room and reinsert your key in the slot, the lights awaken.

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Your finger barely has time to move away from the Return key before the screen is filled with information, starting with the inevitable Wikipedia entry.

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