拿图像来说，根据将要展示的屏幕大小，图像会自动缩减，因此文件变小，传送和加载起来更快。
For example, images are automatically trimmed down to a resolution corresponding to the screen they are displayed upon, making them smaller in size for faster delivery and loading.
拿图像来说，根据将要展示的屏幕大小，图像会自动缩减，因此文件变小，传送和加载起来更快。
For example, images are automatically trimmed down to a resolution corresponding to the screen they are displayed upon, making them smaller in size for faster delivery and loading.
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