Now scientists who track the animals using satellite pictures can no longer find most of the birds. They fear that thousands of penguins may have frozen in Antarctica's icy waters.
With only a handful of clues to answer, the daily puzzle doubles as a speed-running test for many who play it.
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But is there a limit to how connected crowds really want to be?，详情可参考体育直播
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对技术敏感：我们天天跟API打交道，接入AI服务对我们来说轻车熟路