今天起，在 Gemini 应用和 Google 搜索框里，你都能顺手用上它。没有订阅方案的普通用户，24 小时内也能白嫖 100 张；而 Pro 订阅用户的额度则高达 1000 张。
Quadtree-based image compression formats and level-of-detail systems all work this way. Satellite imagery, terrain rendering, and geographic information systems use quadtree decomposition to serve data at varying resolutions: zoomed out, you see large coarse blocks; zoomed in, you see fine-grained tiles. The same principle extends to three dimensions (octrees) for volume rendering and 3D spatial indexing.
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2. 环境准备（macOS 本地）
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