Over billions of years, that would erode the Earth's air away, like a sand blaster stripping paint off a wall.

亿年间，这个过程会侵蚀地球大气，就像用喷砂机剥离墙上的涂料一样。

The city liked the idea, and even helped out by stripping the lead paint and priming over 700 boxes before handing them over to the neighborhoods.

市政府很喜欢这个想法，甚至在将 700 多个箱子交给社区之前， 先去除了含铅油漆并涂上了底漆， 从而提供了帮助。