Sleuthing
n. （非警方人员所做的）调查, 侦察
🗣️ 情景例句
Is that you, Susan?
是你吗， Susan？
We are short of hands now.
我们现在人手不足。
Many more people are 'form-blind' than colour-blind.
形盲的人数比色盲的人数要多得多。