การสอดแนม, หน้าจอ, ควบคุม, ความปลอดภัย, การตรวจสอบ, ค้นหา, การป้องกัน, วีดีโอ, ตรวจสอบ, ดู, กล้อง
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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