retrace

动词 retrace:

1. to go back over again
   同义词：trace
2. reassemble mentally
   同义词：reconstruct, construct

1. I dropped my keys and had to retrace my steps for nearly a mile before I found them.
   我把钥匙丢失了，结果只得顺原路折回，走了差不多一英里才找到。
2. The police retraced the movements of the murder victim.
   警方追溯了被谋杀者当时的动作。
3. He often retraces the happy time during his young age.
   他经常回忆起年轻时代的幸福时光。

re.trace

v.tr.（及物动词）
re.traced,re.trac.ing,re.trac.es
To trace again or back:
重新追踪或回溯：
例句：
retraced their steps.
追溯他们的足迹

【引伸】
retrace.able
adj.（形容词）
retrace.ment
n.（名词）
retrac.er
n.（名词）