Sleuthing
n. （非警方人员所做的）调查, 侦察
🗣️ 情景例句
No news is good news.
没消息就是好消息。
She was so stunned, that she couldn't speak.
她惊愕得说不出话来。
the varieties are infinite; but two classes may be roughly seen.
鸟的飞行方式千差万别，但大体上可分为两类。