Selective tracing
[计] 选择跟踪
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
n. 描摹, 描图, 追踪\\n[计] 跟踪
🗣️ 情景例句
Why don't you write to me, Robbie,
你为什么不给我写信呢 ，Robbie，
If you're not sure how to do is, ask me.
假如你拿不准怎样做，就来问我好了。
We can't go out because of the rain.
我们不能出去因为下雨了。