Bàngōnglóu / měi / céng / dōu / fàngzhe / xiāo / huǒ / qì / yǐ / fáng / fāshēng / huǒzāi

办公楼每层都放着消火器，以防发生火灾。

Every floor of the office building has a fire extinguisher in case of fire.