shutdown（shutdown立即关机参数）

shutdown是关掉的意思，而shut则是关闭的意思，区别可以从以下例子看出：

I prefer to have quiet atmosphere, so please shut down the television, and shut the doors, so I can have meditation. 我喜欢安静的气氛，所以请关掉电视，关上门，这样我才能打坐。

看区别的话，直接对比close和shut这两个单词的区别就可以了

1.两者都表示“关(闭)”,在很多情况下可换用.如：

Close [Shut] the door.把门关上.

He closed [shut] his eyes.他闭上了眼睛.

Shops close [shut] at 5：30.商店 5：30 关门.

They shut [closed] the door on me.他们把我拒之门外.

He closed [shut] his ears to our advice.他对我们的劝告充耳不闻.

2.但要注意以下情况：

(1) 两者的过去式和过去分词分别是 shut和 closed,都可用作形容词.如：

The windows were all closed [shut].窗户都关上了.

但 closed 可放在名词前作定语,而 shut 一般不这样用.如：

a closed window 已关上的窗户

(2) 表示“结束(会议等)”、“关闭(交通等)”、“遮住(表面)”等,通常要用 close (不用 shut).如：

The meeting closed at six o’clock.会议 6 点钟结束.

She closed her face with her hands.她用手捂住脸.

They’ve closed the road for repairs.他们已关闭这条公路,准备翻修.

(3)表示“禁闭”,通常用 shut(不用 close).如：

He was shut in the bedroom.

close down释义：

关闭；停止播音

例句：

A combination of internal and external factors caused the company to close down.

内外因结合导致了公司的倒闭。

视频：

shut down释义：

停工，关闭

例句：

The computer system will be shut down over the weekend.

计算机系统周末关闭。

词组：

emergency shutdown紧急停车；紧急关闭；事故停机；事故切断

shutdown system关闭系统；停车系统；停机系统

视频：

场景会话