ban oi lam nhu ban thi ton rat nhieu nang luong de phat tin hieu hong ngoai. o day minh chi dung nguon nuoi la phin.
y minh muon la no se thu hong ngoai truc tiep cua nguoi phat ra. nhu vay vuon rong vai hetta minh chi can dat mot vai bo o nhung vi tri quan trong.
minh cung khong biet nhieu ve mach phat cao tan khoang cach khoang chung nho hon 500 met .
rat mong su giup do cua cac ban .
neu ban co so do mach co the sen truc tiep cho minh duoc khong
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cam on ban rat nhieu