Du h\u1ecdc sinh b\u1ecb gi\u00e1n \u0111o\u1ea1n v\u00ec Covid-19 c\u00f3 th\u1ec3 d\u1ef1 tuy\u1ec3n v\u00e0o \u0110H Greenwich (Vi\u1ec7t Nam)<\/a><\/blockquote><\/iframe>