他还否认了赴俄罗斯的可能性，表示愿在俄罗斯和白俄罗斯以外的地方与俄方对话。（新华社）
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.
。搜狗输入法2026对此有专业解读
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