criminologist in a protective suit, mask and gloves at the crime scene holding broken beer bottle pieces in a plastic bag - 痕量元素 個照片及圖片檔證物, 指紋, 警察
mid-adult male electrician checking the electric cables with a multimeter in an empty apartment under renovation - 痕量元素 個照片及圖片檔住宅內部, 電線
senior male electrician checking the electric cables with a multimeter in an empty apartment under renovation - 痕量元素 個照片及圖片檔房子加建, 建築地盤, 電線
"life" at night, long exposure light trail of an airplane heading to the galactic center of the milky way, light trails, airplane and satellites - 痕量元素 個照片及圖片檔天空, 夜晚, 飛機
selective focus view at top of grass or rice grain of agricultural field or meadow against sunny sky. - 痕量元素 個照片及圖片檔
selective focus view at top of grass or rice grain of agricultural field or meadow against cloudy sky. - 痕量元素 個照片及圖片檔
