他在这事上走弯路了。
He took a wrong path on this matter.
to take an indirect route; to waste one's time by using an inappropriate method
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他在这事上走弯路了。
He took a wrong path on this matter.
走弯路也是经历。
Taking a detour is also experience.