" I do believe -" said Susan. " But how queer! They're nibbling away at the cords! "

“真的，我信了！”苏珊说，“多怪啊，它们正在咬断绳子呢！”

By-products created by the precipitation of the highest-energy particles nibble away at stratospheric ozone, which shields Earth from ultraviolet solar radiation.

最高能粒子沉淀产生的副产品会蚕食保护地球免受太阳紫外线辐射的平流层臭氧。