It was not supposed to be used until they got to the Moon. It had no heat shield, so could not be used to re-enter the Earth's atmosphere. But it could keep them alive until they got there.
// 将pivot放到正确位置（j的位置）
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When shoes slide across a floor, wave-like deformations of the sole can generate squeaking. The pitch of the squeak depends on the rate at which deformations are generated.
張又俠出事的傳聞，始於20日中共省部級領導幹部學習班，官媒畫面顯示張又俠、劉振立缺席。而僅僅八天前，張又俠還端坐在中紀委五次全會會場。這是他最後一次公開露面。與之形成對比強烈的是，另一位軍委副主席何衛東是在公眾視野消失7個月後才得到官宣。