April 27 is the first day of the April 4 and May 30 holiday. The streets of Hanoi these days wear new colors, with colorful national flags, banners, hoardings, and posters to celebrate many important events of the country.
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Nguồn: https://vnews.gov.vn/video/ha-noi-ruc-ro-co-hoa-dip-le-30-4-1-5-118881.htm