Sleuthing
n. （非警方人员所做的）调查, 侦察
🗣️ 情景例句
Cash only, no checks.
只收现金，不收支票。
It's an incredible story to me.
这对我来说是一个无法相信的传闻。
Jim ran very fast, but Yu Yan from Class 1 ran faster. He began to catch up with Jim.
吉姆跑得非常快，但是1班的余延跑得更快。他开始赶上吉姆。