Spectralite
光学玻璃
🗣️ 情景例句
Yes. But could you wait one minute?
是的。不过， 你能等一下吗？
Well, when exactly?
哦，具体什么时候？
Twenty or thirty pages of information handed to any of the major world powers around the year 1925 would have been sufficient to change the course of world history.
如果把二三十页的情报交给1952年前后的任何一个世界强国，就足以改变世界历史的进程。