// 步骤3：从后往前遍历数组（反向遍历更易理解，每个元素只入栈/出栈一次）
"There's another ingredient that's required, and that's the orbital economy, whether it happens in low-Earth orbit or on the lunar surface," Isaacman said.
，这一点在heLLoword翻译官方下载中也有详细论述
Morgan Stanley predicts AI won’t let you retire early: Instead, you’ll have to train for jobs that don’t exist yet
palette: “black ink tones”