弯路

❶crooked (or winding) road; tortuous path
❷round-about way;detour
我们过去在这个问题上走过～。We suffered setbacks with regard to… or:We have committed some errors (or made detours) in this regard./由于缺少经验，我们的工作走了～。Owing to lack of experience we went astray in our work./少走～avoid detours