blue screen
柯林斯词典
1. N a special effects film technique involving filming actors against a blue screen on which effects such as computerized graphics can be added later and integrated into a single sequence 藍煇熒光屏
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1. N a special effects film technique involving filming actors against a blue screen on which effects such as computerized graphics can be added later and integrated into a single sequence 藍煇熒光屏