มือ, เย็น, คน, ผู้ชาย, ชาย, คนคนหนึ่ง, ผู้ใหญ่, เพศชาย, คนหนุ่มสาว, การศึกษา, กระดานดำ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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