Name: How Gunpowder Is Made?
Uploaded: 2026-01-25T09:35:45.166+00:00
Duration: 4 min 22 s
Description: Luyện nghe chép chính tả tiếng Anh với video “How Gunpowder Is Made?” — Simple Things Surprising Histories · nâng cao · 4:22.

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How Gunpowder Is Made? | Engonow