我不认识她。
跨越巨大距离的粒子纠缠暗示了一个比我们想象中更加相互连接的宇宙。
柠檬问题是指买家无法确定产品质量,因此只愿意支付反映平均质量的价格。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.