Definition
To behave in an honest and morally correct way.
行為正直，遵守道德規範
Since his last mistake, he has been trying to stay on the straight and narrow.
自從上次犯錯後，他一直努力走在正道上。
My parents always taught us to stay on the straight and narrow and to be honest people.
我的父母總是教導我們要走在正道上，做誠實的人。
To maintain a good reputation, she has always followed the straight and narrow path.
為了保持良好的聲譽，她一直遵循正直的道路。