Defence program
un. 保护程序
🧩 词语组成解析
🗣️ 情景例句
OK.
好的。
I hope you can like the show.
我希望你能喜欢这表演。
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。