Definition (清晰度)
This phrase describes whether a photograph or video image is clear and sharp, or unclear and blurry.
（照片或影片）清晰／模糊
The photographer adjusted the lens to make sure the subject was in focus in the photo.
摄影师调整了镜头，确保照片中的主体清晰对焦。
The video sometimes goes out of focus during the fast-moving scenes.
视频在快速移动的场景中有时会失焦。
If the image is out of focus, check if the camera lens needs cleaning or adjustment.
如果图像失焦，检查一下相机镜头是否需要清洁或调整。