（3）50ms 后，sleep 结束，JVM 把虚拟线程重新挂到某个空闲的载体线程上，继续执行后面的 getOrderFromDb()，然后又遇到 sleep，再次卸载……
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How to play PipsIf you've ever played dominoes, you'll have a passing familiarity for how Pips is played. As we've shared in our previous hints stories for Pips, the tiles, like dominoes, are placed vertically or horizontally and connect with each other. The main difference between a traditional game of dominoes and Pips is the color-coded conditions you have to address. The touching tiles don't necessarily have to match.。关于这个话题，heLLoword翻译官方下载提供了深入分析
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