unrecognizable boy marking a piece of wood with a pencil and ruler with the help of an unrecognizable adult - 尺 個影片檔及 b 捲影像00:06
close up side view of female hands taking notes on her study inside coffee shop, busy working writing papers at the cafe, small pocket sketch notebook, freelance worker, hard working day - 尺 個影片檔及 b 捲影像00:27
1939 montage teacher and student inside classroom / lowndes county, alabama, united states - 尺 個影片檔及 b 捲影像00:12
the captain of the greenpeace rainbow uses maps and charts to plot his next course whilst berthed at chittagong in bangladesh during its conversion to a hospital ship - 尺 個影片檔及 b 捲影像00:34