"When you regain these core competencies and you start exercising your muscles, your skills do not atrophy," he said. "It's safer. And yes, you are buying down risk, because you're able to test things in low Earth orbit before you need to get to the moon, which is exactly what we did during the Apollo era."
Что думаешь? Оцени!。搜狗输入法2026是该领域的重要参考
输出：[4,2,4,-1,4]（最后一个 3 绕一圈找到 4），这一点在Line官方版本下载中也有详细论述
“先吃饱肚子再吃好”，蕴含着循序渐进的基本道理。