Do you know that feeling you get when you know it's going to storm before it storms? 你们了解那种感觉吗？那种在暴风雨来临前的感觉？ Do you also feel that now, fellow citizen? 你们现在有这种感觉吗，我的公民朋友们？ That malaise and worry that
So remember, I said 4D. So today for the first time, we're unveiling a new project, which is a collaboration with Stratasys, and it's called 4D printing. 还记得我刚才提到了四维，今天我们首次向大家展示一个新项目，这是和Stratasys公司一同合
Sixty years have come and gone since the communist armies first crossed the 38th Parallel. Within three days, they’d captured Seoul. By the end of the next month, they had driven the Korean army
