Only US firefighters and repairmen can use the buttons to speed up the door-closing process if they have a code or special keys.

只有美国消防员和维修人员有密码或者特殊的钥匙时，他们才能按按钮加速关门的过程。

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You can fold it in half just like closing a book.

你可以像合书一样把它对折。

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By doing this, it can omit the closing tag of an element.

通过这种方法，它可以省略元素的结束标签。

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"One of the things we need to start doing is to get ahead of the curve by trying to anticipate additional methods that can be used against us and closing the gaps before those gaps are exploited,"

VOA: standard.2010.01.19

As a closing remark, you can express your excitement at finally being able to see your loved one after such a long absence.

作为结束的话，你可以表达一下这么久以来即将见到心爱的人的激动心情。

I can't 课堂 - SpeakingMax英语口语达人

These can involve closing down takeaways near schools (a shove) or a ban on smoking near playgrounds (a smack).

BBC: Healthy lifestyles: Is a hug, shove, nudge or smack best?

Anyone who can follow their closing paragraphs on the relation between negative gravitational energy and the creation of the universe probably knows it all already.

ECONOMIST: Understanding the universe: Order of creation | The

We can do that by closing loopholes and eliminating unwarranted tax subsidies that disproportionately benefit the rich.

FORBES: Why we Should Raise Taxes on the Rich (Debate Recap)