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PPT background picture, using black as the PPT background, purple and blue transparent halo, through the black background, into the shining dust...
Keywords: black PPT background, transparent, halo PPT background picture, beautiful slide background picture, art PowerPoint background picture now
Bright color gradient and bright mix, layered floating interface, sm...
The big picture cover of the glorious avenue in the dusk of the nigh...
Work summary for 2017, work outlook for 2018, looking up at the larg...
The award-winning ceremony of the three-dimensional character theme ...
Vibrant blue background, bright color matching, cartoon element desi...
Hard hat, background cover of architectural drawings, architectural ...