Shut down the computer please.

请关上电脑。

youdao

Please shut down the computer properly.

请适当的关机。

youdao

Can you show me how to shut down the computer?

你可以教我怎么关计算机吗？

youdao

Many long hours of work accomplished, you save it all and shut down the computer, planning on continuing after a good night's sleep.

CNN: How do I retrieve a lost file?

You can even shut down your computer and the files will still transfer.

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The assault shut down computer networks at TV stations KBS, MBC and YTN, and halted operations at three banks - Shinhan, NongHyup and Jeju.

BBC: Cyber researcher in Seoul