The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.
new ReadableStream({
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Instax Wide 400
临走前，阿爸的生母问了阿嬷家的村名，也向阿嬷留下了自己家的地址。她说，将来孩子长大，如果愿意，可以去认祖。
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