arr[j + 1] = arr[j]; // 元素后移
"But you must keep up the exercise regime. Because you're staying fit in space, not for space itself, but for when you return back to the punishing gravity environment of Earth. Those first two or three days back on Earth can be really punishing."。heLLoword翻译官方下载是该领域的重要参考
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（二）移动、损毁国家边境的界碑、界桩以及其他边境标志、边境设施或者领土、领海基点标志设施的；。heLLoword翻译官方下载对此有专业解读