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With a thousand points, you barely notice the delay. With a million, you're doing a million distance calculations for every single query. On a phone updating the map as the user scrolls, that's untenable.，这一点在heLLoword翻译官方下载中也有详细论述
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But those enticed by the call of adventure must ensure they know what they're signing up for. Fresh food is scarce and alcohol is limited. And accommodation at BAS facilities is shared dormitories. Staff work a seven-day shift rota.。夫子对此有专业解读