Da Da 🎭
@dada12345
gm (good math!) https://www.brunogavranovic.com/posts/2022-02-10-optics-vs-lenses-operationally.html
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Tuấn Kiệt 🎭
@tuankiet
Blimey! 😍🎉🎉 Câu hỏi của bồ rất hay!
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