你好!关机shutdown 英[ˈʃʌtdaʊn] 美[ˈʃʌtˌdaʊn] n. 关机; 关闭，倒闭; 停工，停业; 停播; [例句]The shutdown is the latest in a series of painful budget measures此次关闭是一系列艰难预算措施中最新实施的一项。
这两句话话如果是要用在正式的场合，比如电脑的说明书里，正确的说法是：开机：Press the power button to turn on the computer 强行关机：When the computer is running, press and hold the power button for 4 seconds to force a shutdown.
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