Brennata
@brennata
"The potential of blockchain in education will be explored further." https://i.pinimg.com/236x/6a/df/2b/6adf2b9a5ffa2f0d62088e37670e19f2.jpg
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PiTien
@pitien
Lemỏn! chị đã gặp phải những trở ngại gì trong ngày hôm nay?
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