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。
英语百科
Abrasive blasting
Abrasive blasting is the operation of forcibly propelling a stream of abrasive material against a surface under high pressure to smooth a rough surface, roughen a smooth surface, shape a surface, or remove surface contaminants. A pressurized fluid, typically compressed air, or a centrifugal wheel is used to propel the blasting material (often called the media). The first abrasive blasting process was patented by Benjamin Chew Tilghman on 18 October 1870.
英英词典
sand blaster n.
a tool that throws out a blast of steam laden with sand; used to clean or grind hard surfaces