急求翻译!翻译：你觉得中国在航天科技上与世界一流大国的差距是多少年?

分类: 作业答案 • 2021-11-12 22:09:33

问题描述：

答

How many years gap do you think there exists on astronautical technology between China and the leading powers.
人工翻译,翻得不好,见笑见笑