音标：[ri'treis] ；柯林斯词典等级：1 级；

vt. 追溯, 折回, 绕回
[电] 返驰

v to go back over again
v reassemble mentally

词型变化：过去式 : retraced ; 现在分词 : retracing ; 过去分词 : retraced ; 第三人称单数 : retraces
考试类型：[GRE]

词性分布：

动词100%

retrace的用法和样例：

例句

用作动词(v.)

We should not retrace the route our forefathers had taken.我们不应重走我们祖先走过的老路。
I need to retrace my steps and find that location.我需要循着原路返回。
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。
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。
The police retraced the movements of the murder victim.警方追溯了被谋杀者当时的动作。

词汇搭配

retrace time回描时间
horizontal retrace水平回描,行回描...
sweep retrace扫描回程
flyback retrace回扫
retrace course沿原路返回的航线...
field retrace场扫描回程,场回描,...
retrace blanking逆程消隐
line retrace行逆程,行回扫...
vertical retrace ratio垂直回描率
retrace characteristic(扫描的)回描特性,...
frame retrace time帧逆程时间
retrace scanning回扫
retrace ratio逆程率
retrace interval回程间隔
retrace period回描周期
retrace line回扫线
scan retrace回扫,扫描逆程...
vertical retrace垂直回描,帧回描...

经典引文

The alley simply terminated...He had to retrace his steps.
出自：B. Unsworth

【近义词】

review复习
redo重做
repeat重复
trace痕迹
construct建造
reconstruct重建

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