Vivianla
@vivianla
"Blockchain will enhance the traceability of goods in commerce." https://i.pinimg.com/236x/91/21/f2/9121f2eee9e5c2fbf6562784dba25ff0.jpg
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Hạnh Mẫn
@hanhman
Đã đọc, rất tâm đắc! Bingo! @vivianla
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