much used or visited

[ before noun ] We followed the well-trodden tourist route from Paris to Chartres. 我们沿着游客常走的路线从巴黎去沙特尔。

used to refer to a set of actions that many people have done or a subject that many people have dealt with previously

[ before noun ] The survey showed that people become managers by well-trodden paths. 调查表明雇员晋升为经理的途径是相似的。