backtrack

1.to backtrack a little, the case is a complex one.

退一步看，这个案子很复杂。

2.the unions have had to backtrack on their demands.

联合会不得不撤回他们先前的要求。

3.he was able to backtrack the buck to a ridge nearby.

他能跟踪那雄鹿到附近山脊。

4.Marilyn backtracked and went down into the basement.

玛里琳退回去，走到地。