backtracked的音标：...

v.走原路( backtrack的过去式和过去分词 )，由原路返回，改变主意，取消诺言...

The finance minister backtracked on his decision.财政部长收回了他的决定。He backtracked into the wood and climbed a tall tree.他沿原路返回树林,爬上一棵粗壮的大树....