Traces of
微量的…,…的痕蹟
🧩 词语组成解析
n. 痕迹；遗迹（trace的复数）
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
I understand
听说，
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很严肃，其实很诙谐。
'And you didn't notice anything unusual?'
“您没有注意到有什么异常情况发生吗？”