另一方面，他的一些朋友遭到ICE的抓捕，這同樣令他感到擔憂。
榮鼎集團的中歐關係專家巴爾金向BBC中文強調，柏林對於德中關係的未來走向存在深切的擔憂。巴爾金認為，原因在於中國已成為德國在曾經主導的工業領域中的強勁競爭對手。「德國每月失去1萬個製造業崗位，而與中國的競爭是主要原因之一。」
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The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.。同城约会对此有专业解读