a trace of
collocation一丝…；微量…
There was a trace of sadness in her voice.
她的声音里有一丝悲伤。
痕迹；踪迹；迹象
traces — plural of trace
先理解核心含义，再看它在真实句子里的用法。
痕迹；踪迹；迹象
a mark or sign left by someone or something that was present
The test found a trace of lead in the drinking water.
检测发现饮用水中有微量的铅。
追踪的行为。
An act of tracing.
刚刚可检测到的数量
a just detectable amount
对丢失物品(如信件或快递包裹)的查询。
An enquiry sent out for a missing article, such as a letter or an express package.
某物曾存在的迹象
an indication that something has been present
She spoke calmly, but there was a trace of nervousness in her voice.
她说得很平静，但声音里有一丝紧张。
AI contextual example
After the rain, only a trace of the chalk drawing remained on the sidewalk.
雨后，人行道上只剩下粉笔画的一点点痕迹。
AI contextual example
he speaks French with a trace of an accent
他讲法语时略带口音。
WordNet
there wasn't a trace of evidence for the claim
这一说法没有丝毫证据。
WordNet
Choose the next layer that will help you use traces with more confidence.
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Missing: Usage patterns
Complete this area with usage patterns.
Includes Common mistakes & Confusing words
See typical errors learners make and confusing words to avoid.
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一丝…；微量…
There was a trace of sadness in her voice.
她的声音里有一丝悲伤。
留下痕迹
The thief left no trace behind.
小偷没有留下任何痕迹。
无影无踪地
He disappeared without a trace.
他消失得无影无踪。
微量元素
Zinc is a trace element essential for health.
锌是健康必需的微量元素。
微量证据
The lab found trace evidence of gunpowder on his hands.
实验室在他的手上发现了火药的微量证据。
痕量；微量
The water contains trace amounts of lead.
水中含有痕量的铅。
消失得无影无踪
The car vanished without a trace.
那辆车消失得无影无踪。
石沉大海；销声匿迹
Many small businesses sink without a trace during a recession.
许多小企业在经济衰退期间销声匿迹。
毫无痕迹；一点也没有
There was not a trace of sadness in her voice.
她的声音中毫无悲伤的痕迹。
Use traces naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Trace 里的 't' 像脚印，'race' 是赛跑——在赛跑中留下痕迹。
语域：中性。典型语境：犯罪现场调查（痕迹）、科学研究（微量）、日常描述（迹象）。注意：名词 trace 在这些语境中均自然使用，无显著语域偏向。
常用复数形式 traces
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.