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来源:雅诚德英语网
But even then, matter at very small scales has a spread out wave-like nature, which means you can't have both the pencil perfectly upright and not moving at the same time.
即使这样十分微小的物质具有类似于波的本质,也就是说铅笔完全竖直与保持平衡不动,不可同时兼得。