1
do some tracing
这里tracing指描摹动作。
I need to do some tracing of the original drawing.
我需要描摹一下原图。
描图；摹本
先理解核心含义，再看它在真实句子里的用法。
描图；摹本
a copy of a picture or drawing made by tracing over it through translucent paper
I need to do some tracing of the original drawing.
我需要描摹一下原图。
通过半透明纸复制图像。
The reproduction of an image made by copying it through translucent paper.
由地震仪等设备记录的图形形式的记录。
A record in the form of a graph made by a device such as a seismograph.
通过研究证据寻找丢失的东西的过程。
The process of finding something that is lost by studying evidence.
规则的路径或轨迹；路线。
A regular path or track; a course.
She made a tracing of the leaf so she could keep the exact shape.
她描了一张叶子的摹本，这样就能保留精确的形状。
The architect compared the tracing with the original blueprint to check for mistakes.
建筑师将描图与原蓝图比较，以检查是否有错误。
These tracings from the 1920s show how the bridge was first designed.
这些来自20世纪20年代的描图展示了这座桥最初的设计。
这里tracing指描摹动作。
I need to do some tracing of the original drawing.
我需要描摹一下原图。
a tracing指描摹出来的图。
This is a tracing of the antique map.
这是一张古地图的摹图。
tracing paper是固定搭配，表示描图纸。
She bought tracing paper for her art project.
她为她的艺术项目买了描图纸。
Not this
I am doing a trace of the picture.
Use this
I am doing a tracing of the picture.
误将动词 'trace' 用作名词；正确名词形式应为 'tracing'。
Not this
I have many tracing to do.
Use this
I have many tracings to do.
'tracing' 为可数名词，复数形式需加 -s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
描图纸
You need tracing paper to copy the map.
你需要用描图纸来描摹这张地图。
心电图记录
The doctor examined the ECG tracing for any irregularities.
医生检查了心电图记录，看是否有异常。
地震仪记录图
The seismograph tracing showed a series of small tremors.
地震仪记录图显示了一系列小震动。
电话追踪
Call tracing helped the police identify the caller's location.
电话追踪帮助警方确定了来电者的位置。
Use tracing naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
tracing 里有 trace（足迹/追踪）：想象用透明纸覆在原图上描线，顺着原图的路线走，所以它既是描图，也是追踪轨迹的图形记录。
语域：mixed 常见场景：美术/制图、科学仪器记录、调查/追查、路线/轨迹 作名词时涵盖多个义项：描图或摹本常见于美术、制图；仪器记录图多出现在科技或医学语境；追查过程多见于调查或逻辑推导。整体语体偏中性至正式，具体正式程度随义项不同而略有变化。
以下词都与 tracing（/ˈtreɪsɪŋ/）押韵：racing、facing、pacing、placing、spacing，它们的结尾都是 /eɪsɪŋ/。注意 tracking（/ˈtrækɪŋ/）拼写相似，但读音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.