014(4-4可逆反應與平衡)

https://www.youtube.com/results?sp=SADqAwA%253D&q=%E5%8F%AF%E9%80%86%E5%8F%8D%E6%87%89%E8%88%87%E5%B9%B3%E8%A1%A1
https://www.youtube.com/watch?v=CD4kumWzccM