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
What a pity! We have another party that day.
太可惜了，我们那天也有个聚会。
Don't forget to phone to let us know you arrived safely.
不要忘记打电话，告诉我们你已经安全抵达。
'You needn't have said that,' my wife answered.
“你没必要这么说，”我妻子回答说，