Thuỷ Trần 🎭
@thuthuy
gm (good math!) https://www.brunogavranovic.com/posts/2022-02-10-optics-vs-lenses-operationally.html
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Nguyễn Văn Hòa 🎩
@hoa26
tao cần thêm thông tin để đưa ra kết luận! 1 👏 Chếc gồi!
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