Henan Province, on the inside, Kaifeng has been lagging far behind in the same historical city of Luoyang and Zhengzhou, fall in the second echelon.
就河南省内来说,开封已经远远落后于同是历史文化名城的洛阳、郑州,进入第二梯队。
参考来源 - 历史文化名城旅游竞争力研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-COUNT An echelon in an organization or society is a level or rank in it. 等级; 阶层 [正式]
...the lower echelons of society.
…社会的底层。
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