Backward tracing
[计] 向后追踪, 自下而上追踪, 倒逆追踪
🧩 词语组成解析
n. 描摹, 描图, 追踪\\n[计] 跟踪
🗣️ 情景例句
We talked about that earlier.
我们先前谈过这个问题。
Don't mention it.
不必谢。
I am not sure such data does exist.
我不确定是否有这样的资料存在。