<prompt> Translate the following text to SwahiliThat mask of aloofness was wiped away as if he were ten years younger and twenty years less responsible than he had been only seconds earlier.  <response>: Huo uso wa kujitenga ulifutwa kama kwamba alikuwa na umri mdogo wa miaka kumi na kuwa na daraka la miaka ishirini kuliko alivyofanya sekunde chache tu zilizopita. 