Retrospective tracing facility
[计] 追溯跟踪设施
🧩 词语组成解析
n. 描摹, 描图, 追踪\\n[计] 跟踪
🗣️ 情景例句
She's smart and sensitive for her age.
就这样的年龄来说 ，她很聪明而且懂事。
Saying is one thing, and doing another.
说是一回事，做是另一回事。
yes, there is.
是的，有一条。