Step through the construction below. Each time a new point is inserted, watch the tree decide whether it needs to split a region:
但它好就好在这是一个高度集成的软硬件结合功能，你可以把它设置成按条件触发，不用像防窥膜那样偶尔撕掉一次还得重新买。
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Chemicals from our phone and TV screens are accumulating in the brains of endangered dolphins and porpoises. New research shows these "liquid crystal monomers" from e-waste can cross the blood-brain barrier and may disrupt DNA repair, highlighting the growing impact of electronics on marine life.
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