为了在白天追踪时间，发明家发明了日晷，它通过太阳阴影的长度或方向来指示时间。
In order to track temporal hours during the day, inventors created sundials, which indicate time by the length or direction of the sun's shadow.
声音可以起作用，阴影也能显示出白天的某个时段，根据日期戳对照天气预报可以知道一个视频或照片是否真的拍摄于某个特定的日期。
Shadows can indicate the time of day. Comparing weather reports with date stamps can reveal whether a video or photograph really was taken on a particular date.
关于白天的情景，我需要全部控制住所有树木投射到建筑上的阴影。
For the daylight scenario I needed to have full control over the shadows of all the trees falling on the building.
白天，自然光线透过这件艺术品，投映出阴影的图案，这些图案随不同时刻、日期和季节发生着变化。
During the day natural light projects patterns of shadows through the artwork, transforming with the hours, days and seasons.
白天给一个站在窗户前的人照相可能会碰到反光问题。相机暴露在明亮的窗户前，使得人物曝光不足而出现阴影。
Shooting someone in front of a window during the day can present bad back-lighting problems—the camera will expose for the bright window, leaving your subject underexposed and lost in shadow.
白天给一个站在窗户前的人照相可能会碰到反光问题。相机暴露在明亮的窗户前，使得人物曝光不足而出现阴影。
Shooting someone in front of a window during the day can present bad back-lighting problems—the camera will expose for the bright window, leaving your subject underexposed and lost in shadow.
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