Ch\u1ecdn ng\u00e0nh h\u1ecdc: Kh\u1ed1i ng\u00e0nh s\u1ee9c kh\u1ecfe thay \u0111\u1ed5i ra sao khi c\u00f3 bi\u1ebfn \u0111\u1ea1i d\u1ecbch?<\/a><\/blockquote><\/iframe>