一个是L4技术实现有了样板，一个是L4商业试点已有成效。
When they are being manufactured in a weightless environment, those atoms line up absolutely perfectly. The vacuum of space also means that contaminants can't sneak in.
。同城约会对此有专业解读
▲ 三星传统艺能：6 种机身颜色，只有 2 种颜色的笔
我們需要對AI機器人保持禮貌嗎？