【简答题】54 Fire Extinguisher_标清.mp4 Watch the video and try to answer the questions: 3. Who can use the fire extinguisher skillfully?
【简答题】54 Fire Extinguisher_标清.mp4 Watch the video and try to answer the questions: 1. what are the different parts of the fire extinguisher?
【简答题】54 Fire Extinguisher_标清.mp4 Watch the video and try to answer the questions: 4. Where can you find the fire extinguisher? Please upload some pictures.
【简答题】54 Fire Extinguisher_标清.mp4 Watch the video and try to answer the questions: 2. Please summarize how to use the fire extinguisher.