Blackboard with math formula and chalk on black background, closeup

Close-up of a blackboard on a wooden table easel, with lettering schedule with a white chalk isolated over black background with copy space. Planning concepts, time management, timetable and timing.

close-up-of-a-blackboard-on-a-wooden-table-easel-with-lettering-schedule-with-a-white-chalk-isolated

圖片庫的Close-up of a blackboard on a wooden table easel, with lettering schedule with a white chalk isolated over black background with copy space. Planning concepts, time management, timetable and timing. 圖片 Image 173365832.

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Close-up Of A Blackboard On A Wooden Table Easel, With Lettering Schedule With A White Chalk Isolated Over Black Background With Copy Space. Planning Concepts, Time Management, Timetable And Timing. 免版權照片，圖片，畫像及圖片庫. Image 173365832.

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Close-up of a blackboard on a wooden table easel, with lettering schedule with a white chalk isolated over black background with copy space. Planning concepts, time management, timetable and timing.

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