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These are two PPT background pictures of the aircraft and aircraft wings;
Keywords: blue sky and white clouds, sky slide background picture, airplane, passenger plane, wing PowerPoint background picture
Product introduction cover, project background, project introduction...
Planets, satellites, small rockets, clouds, stars, books cartoon cre...
Dot connecting lines, lines and lines form geometric shapes, round c...
There is no standard, we only have unique works of art, who we are, ...
Objectives: 1. Ability improvement: Expanding horizons, learning kno...
Colorful vibrant circle, creative bubble, vibrant colorful flat, atm...