h\u00f4m nay ch\u00fang ta s\u1ebd c\u00f3 c\u01a1 h\u1ed9i t\u00ecm hi\u1ec3u v\u1ec1 m\u1ed9t kh\u00e1i ni\u1ec7m kh\u00f4ng m\u1edbi nh\u01b0ng l\u1ea1i kh\u00e1 m\u01a1 h\u1ed3 v\u1edbi d\u00e2n ch\u01a1i \u0111\u1ec1 – \u0110\u00f3 ch\u00ednh l\u00e0 \u0110\u1ec0 B\u1ed8. S\u1eed d\u1ee5ng c\u00e1c b\u1ed9 \u0111\u1ec1 s\u1ebd gi\u00fap ng\u01b0\u1eddi ch\u01a1i ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c th\u1eddi gian soi c\u1ea7u, \u0111\u00e1nh \u0111\u1ec1 theo b\u1ed9 c\u00f2n gi\u00fap n\u00e2ng cao kh\u1ea3 n\u0103ng chi\u1ebfn th\u1eafng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u0111\u1ec1 b\u1ed9 c\u01a1 b\u1ea3n<\/strong> m\u00e0 b\u1ea5t c\u1ee9 d\u00e2n ch\u01a1i x\u1ed5 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0o c\u0169ng n\u00ean bi\u1ebft.<\/em><\/p>\n