针孔 (zhēnkǒng): pinhole

Measure Word

一个针孔 gè

她把线穿过了针孔。

Tā bǎ xiàn chuānguò le zhēnkǒng.

She threaded the line through the eye of the needle.

针孔摄像头很难被发现。

Zhēnkǒng shèxiàngtóu hěn nán bèi fāxiàn.

Pinhole cameras are hard to detect.

usage

针孔摄像头 (zhēnkǒng shèxiàngtóu) means 'pinhole camera / spy camera' — a common compound in news about hidden surveillance.

针 zhēn

孔 kǒng