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
The Thanksgiving Day parade is always such great fun.
感恩节的游行总是如此有趣。
What is known to three is known to everybody.
一件事情三个人知道就人人知道。
They rode their respective bikes.
他们各自骑着自己的自行车。