在 3D 世界里，一个物体 = 几何体 + 材质。
She added the experience had been "life changing" and that her children constantly worried about her becoming unwell again.
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The environment charity welcomed Waitrose's announcement. Kerry Lyne, its Good Fish Guide manager, said: "To keep favourites like mackerel on the menu, we need support right across the supply chain with fishing kept within sustainable limits."
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