ALL FIRE SAFETY PASSAGEWAYS MUST BE CLEARED OF ALL OBSTRUCTION AND NO PILING OF MATERIALS AROUND FIRE EQUIPMENT是什么意思_ALL FIRE SAFETY PASSAGEWAYS MUST BE CLEARED OF ALL OBSTRUCTION AND NO PILING OF MATERIALS AROUND FIRE EQUIPMENT在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句