Tuy\u1ec3n sinh 2021: H\u1ecdc ng\u00e0nh n\u00e0o \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi b\u1ed1i c\u1ea3nh chuy\u1ec3n \u0111\u1ed1i s\u1ed1?<\/a><\/blockquote><\/iframe>