to go back along a path that you have just followed

We went the wrong way and had to backtrack till we got to the right turning. 我们走错了路，只好原路返回，直到找到正确的拐弯处。

to say that you did not mean something you said earlier or say that you have changed your opinion

[ + speech ] "All right," he backtracked, "It's possible that I was mistaken." “好吧，”他改变了态度说道：“我可能是错了。”

The officers were forced to backtrack on their statements. 这些军官被迫收回他们的声明。

She refused to backtrack from her criticisms of the proposal. 她拒绝收回对该提案的批评。