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
I don't care how much I have to study. I have to pass this exam.
我不介意要学多少东西。我必须得通过考试。
Are most of the lakes located in the north central region?
大多数湖位于向北中央的区域吗？
That machine joins these different pieces of metal together.
那台机器把这些不同的金属片焊接起来。