VOA慢速英语:Defending Spacecraft and Astronauts Against Dust

solar system – n. the sun and everything that moves around it

neat – (informal) adj. pleasant, fun or interesting

real-world application(s) – n. something that can be used in life rather than only in theory or in a laboratory

hardware – n. computer equipment

sec(ond) – n. a unit of time that is equal to 1/60th of a minute

puncture – v. to make a hole in (something) with a sharp point

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