Lo?i b? vi khu?n, n?m m?c gây h?i, n??c ch?a ch?t b?n ra kh?i gh? sofa b?ng máy hút v?i l?c m?nh Preparation: We'll then take out any objects from a sofa and vacuum it to get rid of any loose Grime or debris. Hút s?ch b?i b?n bám trên b? m?t tr??c kh