亦步亦趋 follow suit
Explanation
比喻没有主见，行动或思维总是模仿或追随别人。
It means that one has no own opinion, and always imitates or follows others in their actions or thoughts.
Origin Story
春秋时期，孔子收了许多学生，其中颜回最为优秀。颜回勤奋好学，对孔子十分敬仰，无论孔子做什么，他都默默地跟随，一举一动都模仿孔子。有一次，颜回对孔子说：“老师，您走到哪，我就走到哪；您跑多快，我就跑多快。您跑得飞快，我却只能远远地落在您的后面。”孔子的这句话后来演变成成语“亦步亦趋”，用来比喻缺乏主见，一味模仿他人。
During the Spring and Autumn period, Confucius had many students, among whom Yan Hui was the most outstanding. Yan Hui was diligent and respectful to Confucius. No matter what Confucius did, he silently followed, imitating every move. Once, Yan Hui said to Confucius, "Teacher, wherever you go, I go; however fast you run, I run. When you run quickly, I am far behind you." This quote from Confucius later became the idiom "Yi Bu Yi Qu", which means to lack one's own opinion and simply imitate others.
Usage
常用于批评那些缺乏独立思考能力，盲目模仿他人的人。
It is often used to criticize those who lack independent thinking ability and blindly imitate others.
Examples
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他总是亦步亦趋地模仿别人，缺乏自己的想法。
ta zongshi yibu yiqu di momang bieren, quefa ziji de xiangfa
He always imitates others blindly, lacking his own ideas.
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在创新方面，我们不能亦步亦趋，要勇于尝试新的方法。
zai chuangxin fangmian, women buneng yibu yiqu, yao yongyu changshi xin de fangfa
In terms of innovation, we cannot simply follow others; we must dare to try new methods