1、You should have a smoke alarm outside each bedroom and on each floor of your home.
你應該在每間臥室外和家里的每層樓安裝一個煙霧報警器。

2、A smoke alarm warns you of the danger.
煙霧警報器警告你有危險。

3、Note the Smoke Alarm above the grandfather clock.
注意：以上祖父時鐘煙霧報警器。

4、Check smoke alarm displays on bridge and report.
檢查駕駛臺的煙霧警報顯示并報告。

5、A smoke alarm lasts about ten years.
煙霧報警器可以持續(xù)工作10年左右。

6、A: Look, I even installed smoke alarm B: What was the purpose of that
A: 看，我甚至都裝了火災報警器。 B: 那是干什么用的？

7、They fitted a smoke alarm to the ceiling.
他們把煙霧報警器安裝在天花板上。