They fitted a smoke alarm to the ceiling.

他们把烟雾报警器安装在天花板上。

《牛津词典》

He ripped away a wire that led to the alarm button.

他把连接报警按钮的电线扯掉了。

《柯林斯英汉双解大词典》

A smoke alarm lasts about ten years.

烟雾报警器可以持续工作10年左右。

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Seiko wrote there was a similar fire in Kabukicho,Japan in two thousand one: "The building had a fire alarm apparatus but the switch was turned off because of poor maintenance.

VOA: special.2011.03.18

The FAA then grounded the fleet on January 16 after an emergency landing by an All Nippon Airways flight in Japan that was prompted by a battery alarm and a report of a burning smell.

CNN: What's wrong with the Dreamliner?

The Boston fire and a subsequent incident involving a battery alarm and a report of a burning smell on another 787 that made an emergency landing in Japan prompted the Federal Aviation Administration and other safety agencies globally to ground the Dreamliner last week.

CNN: Quick fix for Dreamliner looks less likely, experts say

Two recent incidents -- a fire aboard a Japan Airlines aircraft at Boston's Logan International Airport on January 7 and a smoke alarm aboard a plane flying over Japan on January 16 -- prompted the FAA to ground all Dreamliners in the United States, and other nations quickly followed suit.

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