backtrack例句
We had to
backtrack to the corner and cross the street.
我们不得不原路返回到拐角处过街。
Can we just
backtrack a little bit and look at your primary and secondary education?
我们能不能回过头来谈谈你的小学和中学教育？
Air cargo loading problem by
backtrack algorithm is solved.
用回溯算法解决飞机货舱装载问题.