But when a violent wind bends tall poplars and scatters the leaves in eddies, when it uproots trees and carries off the roofs of buildings, who can doubt the existence of air?

• 但是当暴风吹弯了高大的杨树，把树叶吹散成涡旋，当它连根拔起树，吹走建筑的屋顶，谁会怀疑空气的存在呢？