商業照片: 學生 · 頭 · 看 · 複雜 · 數學
商業照片: 學生 · 頭 · 看 · 複雜 · 數學 / Student holding his head looking at complex math formulas on whiteboard. Mathematics and science exam concept, problem to solve. Real equations, symbols.
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#7146438 Student holding his head looking at complex math formulas on whiteboard. Problem to solvephotocreo 商業照片 photocreo

XXL JPG 5500 x 4034 圖素
18.3" x 13.4" | 46.5 cm x 34 cm @ 300dpi JPG
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