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backtrack的第三人称单数（三单）为：backtracks...
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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 algor...
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backtrack的音标：backtrack的英式发音音标为：['bæktræk]backtrack的美式发音音标为：['bækˌtræk]...
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backtrack的现在进行时为：backtracking...
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backtrack的现在完成时为：backtracked...
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backtrack的一般过去时为：backtracked...