Please be advised that, at most times, they make more or less promotion in the process of imitation. That attributes to their "丰厚的知识和智慧储备". Otherwise, they even could not imitate, right?
What do you mean by "美国如果封锁技术"? Do you mean USA expelled all alien scientists and engineers? Then American scientific power would collapse first. And, it would become far easier for Chinese to surpass.
看看吧:
President Trump says he is ready to declare the nation's opioid crisis "a national emergency," saying it is a "serious problem the likes of which we have never had," citing an overdose death rate of 142 a day.
我刚来美国时,我的导师几个小孩子都在中、小学读书。我问他小孩去学校最重要的是什么。他回答:公民意识,organize, and social skills. 我当年不理解。现在我回中国,看到满街无序的交通,谁也不愿遵交通规则,各种奇怪、想不到的不安全食品,深深体会到国家中小学教育的最根本应是公民教育,文化在其次。
现在中国年轻人的中文程度很差,走进书店,看到的是“成功学”的商业书籍占主流。过去几十年,中国有多少真正的文学作品?而美国的图书馆,架上的新书每月不停的换,好的文学作品,传记文学很多。而且是“白人”们在那勤奋读书,而且是读闲书,不为职业…