horizontal size fade of cubes with vertical increasing number of stripes - pattern - 一級樓梯 幅插畫檔、美工圖案、卡通及圖標黑白片, 垂直構圖, 顏色漸變
carbon footprint, co2, planet earth, ecology, climate change vector icon on white background. editable stroke. pixel perfect. for mobile and web. outline vector graphics. - 一級樓梯 幅插畫檔、美工圖案、卡通及圖標步行, 圖示