rocket science
柯林斯词典
1. N-UNCOUNT If you say that something is not rocket science, you mean that you do not have to be intelligent in order to do it. 高深的事; 难做的事
Interviewing politicians may not be rocket science, but it does matter. 采访政治家可能并不是多么难的事，但的确很重要。
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rocket science
剑桥词典
- the scientific study of rockets
火箭科学，火箭学