例句與造句

1. This device is operated manually by person who discovers fire . by breaking the glass it will lead to the sounding of the fire alarm bells throughout the building
   這一方法是在有人發(fā)現(xiàn)火災時現(xiàn)場予以處理，打破玻璃將觸響火災警鈐并遍及整個建筑。
2. It's difficult to find fire alarm bell in a sentence. 用fire alarm bell造句挺難的